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6650-00-768-8777

20 Products

7688777

LENS,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007688777

NSN

6650-00-768-8777

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7688777

LENS,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007688777

NSN

6650-00-768-8777

MFG

U S ARMY ARMAMENT RESEARCH & DEVELOPMENT COMMAND

Description

ABBE CONSTANT: 55.000
AXIAL THICKNESS: 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM
BACK FOCAL LENGTH: 2.449 INCHES
DESIGN CONTROL REFERENCE: 7688777
DIAMETER: 1.297 INCHES MINIMUM AND 1.300 INCHES MAXIMUM
ELEMENT LEFT SURFACE RADIUS: 3.100 INCHES
ELEMENT RIGHT SURFACE RADIUS: 2.100 INCHES
EQUIVALENT FOCAL LENGTH: 2.501 INCHES
III FSC APPLICATION DATA: PERISCOPE,TANK
MANUFACTURERS CODE: 19200
MATERIAL: GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE D, TYPE 617-550
REFRACTION INDEX: 1.6170 NOMINAL
SINGLE LENS STYLE: D1 DOUBLE CONVEX
SPECIAL FEATURES: EDGES CHAMFERED 0.010 TO 0.020 IN. BY 45 DEG. BOTH SURFACES COATED WITH MAGNESIUM FLUORIDE. RIM GROUND.
THE MANUFACTURERS DATA:

7670787

PRISM,OPTICAL INSTRUMENT,MOUNTED

NSN, MFG P/N

6650007670787

NSN

6650-00-767-0787

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7670787

PRISM,OPTICAL INSTRUMENT,MOUNTED

NSN, MFG P/N

6650007670787

NSN

6650-00-767-0787

MFG

U S ARMY ARMAMENT RESEARCH & DEVELOPMENT COMMAND

Description

ASSEMBLY METHOD: BONDED
DESIGN CONTROL REFERENCE: 7670787
EYE FOR WHICH DESIGNED: LEFT
LIGHT DEVIATION: 180 DEG
MANUFACTURERS CODE: 19200
QUANTITY: 2
STYLE DESIGNATOR: G9 PORRO SYSTEM
THE MANUFACTURERS DATA:

7673922

RETICLE,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007673922

NSN

6650-00-767-3922

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7673922

RETICLE,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007673922

NSN

6650-00-767-3922

MFG

U S ARMY ARMAMENT RESEARCH & DEVELOPMENT COMMAND

Description

(NON-CORE DATA) EDGE THICKNESS: 0.0900 INCHES NOMINAL
ANGLE IN DEG: 45.0
AXIAL THICKNESS: 0.120 INCHES NOMINAL
DESIGN CONTROL REFERENCE: 7673922
DIAMETER: 1.0760 INCHES NOMINAL
DISPERSION: 46.0 ANGSTROMS NOMINAL
FSC APPLICATION DATA: TELESCOPE M16D,INTEGRATED WITH FIRE CONTROL
GRADUATIONS/MARKINGS: RANGE SCALE
MANUFACTURERS CODE: 19200
MATERIAL: GLASS OPTICAL
REFRACTION INDEX: 1.5838 NOMINAL
RIM FINISH: GROUND
SPECIAL FEATURES: 0.0150 IN. BEVEL DEPTH
STYLE DESIGNATOR: A3 VERTICALLY GRADUATED
SUPPLEMENTARY FEATURES: MATERIAL OPTICAL GLASS PER JAN-G-174, GRADE C
THE MANUFACTURERS DATA:

7674232

RETICLE,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007674232

NSN

6650-00-767-4232

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7674232

RETICLE,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007674232

NSN

6650-00-767-4232

MFG

U S ARMY ARMAMENT RESEARCH & DEVELOPMENT COMMAND

Description

(NON-CORE DATA) EDGE THICKNESS: 0.1400 INCHES NOMINAL
ANGLE IN DEG: 45.0
AXIAL THICKNESS: 0.200 INCHES NOMINAL
DESIGN CONTROL REFERENCE: 7674232
DIAMETER: 2.0300 INCHES NOMINAL
DISPERSION: 46.0 ANGSTROMS NOMINAL
FSC APPLICATION DATA: TELESCOPE M71C,INTEGRATED WITH FIRE CONTROL EQUIP
GRADUATIONS/MARKINGS: RANGE SCALE
MANUFACTURERS CODE: 19200
MATERIAL: GLASS OPTICAL
REFRACTION INDEX: 1.5840 NOMINAL
RIM FINISH: GROUND
SCALE CALIBRATION: 0 TO 4200 YD
SPECIAL FEATURES: 0.0300 IN. BEVEL DEPTH
STYLE DESIGNATOR: A6 VERTICALLY GRADUATED
SUPPLEMENTARY FEATURES: MATERIAL OPTICAL GLASS PER JAN-G-174, GRADE C, TYPE 584-460
THE MANUFACTURERS DATA:

7674312

RETICLE,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007674312

NSN

6650-00-767-4312

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7674312

RETICLE,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007674312

NSN

6650-00-767-4312

MFG

U S ARMY ARMAMENT RESEARCH & DEVELOPMENT COMMAND

Description

(NON-CORE DATA) EDGE THICKNESS: 0.0900 INCHES NOMINAL
ANGLE IN DEG: 45.0
AXIAL THICKNESS: 0.120 INCHES NOMINAL
DESIGN CONTROL REFERENCE: 7674312
DIAMETER: 1.0760 INCHES NOMINAL
DISPERSION: 46.0 ANGSTROMS NOMINAL
FSC APPLICATION DATA: TELESCOPE ELBOW M16A1F,INTEGRATED WITH FIRE CONTROL
GRADUATIONS/MARKINGS: RANGE SCALE
MANUFACTURERS CODE: 19200
MATERIAL: GLASS OPTICAL
REFRACTION INDEX: 1.5838 NOMINAL
RIM FINISH: GROUND
SPECIAL FEATURES: 0.0150 IN. BEVEL DEPTH
STYLE DESIGNATOR: A3 VERTICALLY GRADUATED
SUPPLEMENTARY FEATURES: MATERIAL OPTICAL GLASS PER JAN-G-174, GRADE C
THE MANUFACTURERS DATA:

7674628

EYEPIECE ASSEMBLY,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007674628

NSN

6650-00-767-4628

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7674628

EYEPIECE ASSEMBLY,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007674628

NSN

6650-00-767-4628

MFG

U S ARMY ARMAMENT RESEARCH & DEVELOPMENT COMMAND

Description

ACCESSORY COMPONENTS AND QUANTITY: COVER HOUSING 1; LENS 1; CELL ASSEMBLY 1
FOCUSING TYPE: ADJUSTABLE
SPECIAL FEATURES: COVER HOUSING,ALUMINUM ALLOY

7674879

PRISM,OPTICAL INSTRUMENT,MOUNTED

NSN, MFG P/N

6650007674879

NSN

6650-00-767-4879

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7674879

PRISM,OPTICAL INSTRUMENT,MOUNTED

NSN, MFG P/N

6650007674879

NSN

6650-00-767-4879

MFG

U S ARMY ARMAMENT RESEARCH & DEVELOPMENT COMMAND

Description

ASSEMBLY METHOD: BONDED
DESIGN CONTROL REFERENCE: 7674879
EYE FOR WHICH DESIGNED: RIGHT
LIGHT DEVIATION: 180 DEG
MANUFACTURERS CODE: 19200
QUANTITY: 2
STYLE DESIGNATOR: G9 PORRO SYSTEM
THE MANUFACTURERS DATA:

7675652

EYEPIECE ASSEMBLY,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007675652

NSN

6650-00-767-5652

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7675652

EYEPIECE ASSEMBLY,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007675652

NSN

6650-00-767-5652

MFG

U S ARMY ARMAMENT RESEARCH & DEVELOPMENT COMMAND

Description

ACCESSORY COMPONENTS AND QUANTITY: COVER 1
DIOPTER SCALE: NOT INCLUDED
EYE FOR WHICH DESIGNED: RIGHT
FOCUSING TYPE: ADJUSTABLE

7676064

RETICLE,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007676064

NSN

6650-00-767-6064

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7676064

RETICLE,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007676064

NSN

6650-00-767-6064

MFG

U S ARMY ARMAMENT RESEARCH & DEVELOPMENT COMMAND

Description

(NON-CORE DATA) EDGE THICKNESS: 0.1200 INCHES NOMINAL
ANGLE IN DEG: 45.0
AXIAL THICKNESS: 0.120 INCHES NOMINAL
DESIGN CONTROL REFERENCE: 7676064
DIAMETER: 1.0760 INCHES NOMINAL
DISPERSION: 46.0 ANGSTROMS NOMINAL
FSC APPLICATION DATA: TELESCOPE,INTEGRATED WITH FIRE CONTROL EQUIPMENT
GRADUATIONS/MARKINGS: RANGE SCALE
MANUFACTURERS CODE: 19200
REFRACTION INDEX: 1.5838 NOMINAL
RIM FINISH: GROUND
SPECIAL FEATURES: 0.0150 IN. BEVEL DEPTH
STYLE DESIGNATOR: A3 VERTICALLY GRADUATED
THE MANUFACTURERS DATA:

7677597

PRISM,OPTICAL INSTRUMENT,MOUNTED

NSN, MFG P/N

6650007677597

NSN

6650-00-767-7597

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7677597

PRISM,OPTICAL INSTRUMENT,MOUNTED

NSN, MFG P/N

6650007677597

NSN

6650-00-767-7597

MFG

U S ARMY ARMAMENT RESEARCH & DEVELOPMENT COMMAND

Description

ASSEMBLY METHOD: BONDED
DESIGN CONTROL REFERENCE: 7677597
MANUFACTURERS CODE: 19200
QUANTITY: 1
STYLE DESIGNATOR: G12 WEDGE TYPE
THE MANUFACTURERS DATA:

24

LIGHT ASSEMBLY,CYLI

NSN, MFG P/N

6650007684776

NSN

6650-00-768-4776

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24

LIGHT ASSEMBLY,CYLI

NSN, MFG P/N

6650007684776

NSN

6650-00-768-4776

MFG

GYRUS ACMI L.P. DBA CIRCON-ACMI DIV

Description

DESIGN CONTROL REFERENCE: 24
III END ITEM IDENTIFICATION: 6650006899853
MANUFACTURERS CODE: 02033
THE MANUFACTURERS DATA:

7688718

LENS,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007688718

NSN

6650-00-768-8718

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7688718

LENS,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007688718

NSN

6650-00-768-8718

MFG

U S ARMY ARMAMENT RESEARCH & DEVELOPMENT COMMAND

Description

ABBE CONSTANT: 63.500 AND 29.300
AXIAL THICKNESS: 0.108 INCHES MINIMUM AND 0.128 INCHES MAXIMUM AND 0.384 INCHES MINIMUM AND 0.404 INCHES MAXIMUM
COMPOUND LENS EDGE THICKNESS: 0.469 INCHES NOMINAL
COMPOUND LENS OVERALL AXIAL THICKNESS: 0.492 INCHES MINIMUM AND 0.532 INCHES MAXIMUM
COMPOUND LENS STYLE: E1 DOUBLET
DESIGN CONTROL REFERENCE: 7688718
DIAMETER: 1.062 INCHES MINIMUM AND 1.065 INCHES MAXIMUM
ELEMENT LEFT SURFACE RADIUS: 1.575 INCHES
ELEMENT RIGHT SURFACE RADIUS: 1.087 INCHES
EQUIVALENT FOCAL LENGTH: 35.620 INCHES
III FSC APPLICATION DATA: PERISCOPE,TANK
INDIVIDUAL LENS STYLE: D1 DOUBLE CONVEX AND D4 DOUBLE CONCAVE
MANUFACTURERS CODE: 19200
MATERIAL: GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, TYPE 511-635 AND GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, TYPE 720-293
REFRACTION INDEX: 1.5110 NOMINAL AND 1.7200 NOMINAL
SPECIAL FEATURES: FRONT AND BACK SURFACES COATED WITH MAGNESIUM FLUORIDE. ALL EDGES CHAMFERED 0.020 IN. MIN. BY 45 DEG. RIM AND CHAMFERS GROUND.
THE MANUFACTURERS DATA:

7688722

LENS,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007688722

NSN

6650-00-768-8722

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7688722

LENS,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007688722

NSN

6650-00-768-8722

MFG

U S ARMY ARMAMENT RESEARCH & DEVELOPMENT COMMAND

Description

ABBE CONSTANT: 63.500
AXIAL THICKNESS: 0.226 INCHES MINIMUM AND 0.246 INCHES MAXIMUM
BACK FOCAL LENGTH: 2.571 INCHES
DESIGN CONTROL REFERENCE: 7688722
DIAMETER: 1.062 INCHES MINIMUM AND 1.065 INCHES MAXIMUM
ELEMENT LEFT SURFACE RADIUS: 2.362 INCHES
ELEMENT RIGHT SURFACE RADIUS: 3.093 INCHES
EQUIVALENT FOCAL LENGTH: 2.659 INCHES
III FSC APPLICATION DATA: PERISCOPE,TANK
INDIVIDUAL LENS STYLE: D1 DOUBLE CONVEX
MANUFACTURERS CODE: 19200
MATERIAL: GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, TYPE 511-635
REFRACTION INDEX: 1.5110 NOMINAL
SINGLE LENS STYLE: D1 DOUBLE CONVEX
SPECIAL FEATURES: EDGES CHAMFERED 0.020 TO 0.030 IN. BY 45 DEG. BOTH SURFACES COATED WITH MAGNESIUM FLUORIDE. RIM AND CHAMFERS GROUND.
THE MANUFACTURERS DATA:

1240007688725

LENS,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007688725

NSN

6650-00-768-8725

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1240007688725

LENS,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007688725

NSN

6650-00-768-8725

MFG

E.C.A ETABLISSEMENT CENTRAL DES APPROVISIONNEMENTS DES FORCES ARMEES

Description

ABBE CONSTANT: 63.500 AND 29.300
AXIAL THICKNESS: 0.108 INCHES MINIMUM AND 0.128 INCHES MAXIMUM AND 0.384 INCHES MINIMUM AND 0.404 INCHES MAXIMUM
COMPOUND LENS OVERALL AXIAL THICKNESS: 0.492 INCHES MINIMUM AND 0.532 INCHES MAXIMUM
COMPOUND LENS STYLE: E1 DOUBLET
DESIGN CONTROL REFERENCE: 7688725
DIAMETER: 1.391 INCHES MINIMUM AND 1.397 INCHES MAXIMUM
ELEMENT LEFT SURFACE RADIUS: 1.3400 INCHES
ELEMENT RIGHT SURFACE RADIUS: 2.4390 INCHES
EQUIVALENT FOCAL LENGTH: 96.940 INCHES
III FSC APPLICATION DATA: PERISCOPE,TANK
INDIVIDUAL LENS STYLE: D1 DOUBLE CONVEX AND D4 DOUBLE CONCAVE
MANUFACTURERS CODE: 19200
MATERIAL: GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, TYPE 511-635 AND GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, TYPE 720-293
REFRACTION INDEX: 1.5110 NOMINAL AND 1.7200 NOMINAL
SPECIAL FEATURES: CHAMFER EDGES 0.020 IN. MIN,0.030 IN. MAX. BY 45 DEG. FRONT AND BACK SURFACES COATED WITH MAGNESIUM FLUORIDE.
THE MANUFACTURERS DATA:

7688725

LENS,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007688725

NSN

6650-00-768-8725

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7688725

LENS,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007688725

NSN

6650-00-768-8725

MFG

U S ARMY ARMAMENT RESEARCH & DEVELOPMENT COMMAND

Description

ABBE CONSTANT: 63.500 AND 29.300
AXIAL THICKNESS: 0.108 INCHES MINIMUM AND 0.128 INCHES MAXIMUM AND 0.384 INCHES MINIMUM AND 0.404 INCHES MAXIMUM
COMPOUND LENS OVERALL AXIAL THICKNESS: 0.492 INCHES MINIMUM AND 0.532 INCHES MAXIMUM
COMPOUND LENS STYLE: E1 DOUBLET
DESIGN CONTROL REFERENCE: 7688725
DIAMETER: 1.391 INCHES MINIMUM AND 1.397 INCHES MAXIMUM
ELEMENT LEFT SURFACE RADIUS: 1.3400 INCHES
ELEMENT RIGHT SURFACE RADIUS: 2.4390 INCHES
EQUIVALENT FOCAL LENGTH: 96.940 INCHES
III FSC APPLICATION DATA: PERISCOPE,TANK
INDIVIDUAL LENS STYLE: D1 DOUBLE CONVEX AND D4 DOUBLE CONCAVE
MANUFACTURERS CODE: 19200
MATERIAL: GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, TYPE 511-635 AND GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, TYPE 720-293
REFRACTION INDEX: 1.5110 NOMINAL AND 1.7200 NOMINAL
SPECIAL FEATURES: CHAMFER EDGES 0.020 IN. MIN,0.030 IN. MAX. BY 45 DEG. FRONT AND BACK SURFACES COATED WITH MAGNESIUM FLUORIDE.
THE MANUFACTURERS DATA:

7688729

LENS,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007688729

NSN

6650-00-768-8729

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7688729

LENS,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007688729

NSN

6650-00-768-8729

MFG

U S ARMY ARMAMENT RESEARCH & DEVELOPMENT COMMAND

Description

ABBE CONSTANT: 63.500
AXIAL THICKNESS: 0.206 INCHES MINIMUM AND 0.226 INCHES MAXIMUM
BACK FOCAL LENGTH: 3.902 INCHES
DESIGN CONTROL REFERENCE: 7688729
DIAMETER: 1.391 INCHES MINIMUM AND 1.397 INCHES MAXIMUM
ELEMENT LEFT SURFACE RADIUS: 2.067 INCHES
ELEMENT RIGHT SURFACE RADIUS: 2.067 INCHES
EQUIVALENT FOCAL LENGTH: 4.045 INCHES
III FSC APPLICATION DATA: PERISCOPE,TANK
MANUFACTURERS CODE: 19200
MATERIAL: GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, TYPE 511-635
REFRACTION INDEX: 1.5110 NOMINAL
SINGLE LENS STYLE: D2 PLANO-CONVEX
SPECIAL FEATURES: CHAMFER EDGES 0.010 IN. MIN,0.020 IN. MAX. BY 45 DEG. FRONT AND BACK SURFACES COATED WITH MAGNESIUM FLUORIDE.
THE MANUFACTURERS DATA:

7688752

PRISM,OPTICAL INSTRUMENT,MOUNTED

NSN, MFG P/N

6650007688752

NSN

6650-00-768-8752

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7688752

PRISM,OPTICAL INSTRUMENT,MOUNTED

NSN, MFG P/N

6650007688752

NSN

6650-00-768-8752

MFG

U S ARMY ARMAMENT RESEARCH & DEVELOPMENT COMMAND

Description

ASSEMBLY METHOD: BONDED
DESIGN CONTROL REFERENCE: 7688752
III FSC APPLICATION DATA: PERISCOPE,TANK
LIGHT DEVIATION: 90 DEG.
MANUFACTURERS CODE: 19200
QUANTITY: 1
STYLE DESIGNATOR: G4 ROOF-ANGLE
THE MANUFACTURERS DATA:

7688771

LENS,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007688771

NSN

6650-00-768-8771

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7688771

LENS,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007688771

NSN

6650-00-768-8771

MFG

U S ARMY ARMAMENT RESEARCH & DEVELOPMENT COMMAND

Description

ABBE CONSTANT: 30.900
AXIAL THICKNESS: 0.241 INCHES MINIMUM AND 0.251 INCHES MAXIMUM
BACK FOCAL LENGTH: -0.961 INCHES
DESIGN CONTROL REFERENCE: 7688771
DIAMETER: 1.097 INCHES MINIMUM AND 1.100 INCHES MAXIMUM
ELEMENT LEFT SURFACE RADIUS: 2.774 INCHES
ELEMENT RIGHT SURFACE RADIUS: 0.860 INCHES
EQUIVALENT FOCAL LENGTH: -0.927 INCHES
III FSC APPLICATION DATA: PERISCOPE,TANK
MANUFACTURERS CODE: 19200
MATERIAL: GLASS, OPTICAL, MIL-G-174, GRADE C, TYPE 689-309
REFRACTION INDEX: 1.6890 NOMINAL
SINGLE LENS STYLE: D4 DOUBLE CONCAVE
SPECIAL FEATURES: LEFT SURFACE EDGE CHAMFER 0.010 TO 0.020 IN. BY 45 DEG. RIGHT SURFACE EDGE CHAMFER 0.050 TO 0.060 IN. BY 45 DEG. BOTH SURFACES COATED WITH MAGNESIUM FLUORIDE. RIM AND CHAMFERS GROUND.
THE MANUFACTURERS DATA:

7688773

LENS,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007688773

NSN

6650-00-768-8773

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7688773

LENS,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007688773

NSN

6650-00-768-8773

MFG

U S ARMY ARMAMENT RESEARCH & DEVELOPMENT COMMAND

Description

ABBE CONSTANT: 55.000
AXIAL THICKNESS: 0.590 INCHES MINIMUM AND 0.610 INCHES MAXIMUM
BACK FOCAL LENGTH: 1.286 INCHES
DESIGN CONTROL REFERENCE: 7688773
DIAMETER: 1.297 INCHES MINIMUM AND 1.300 INCHES MAXIMUM
ELEMENT LEFT SURFACE RADIUS: 1.236 INCHES
ELEMENT RIGHT SURFACE RADIUS: 3.740 INCHES
EQUIVALENT FOCAL LENGTH: 1.578 INCHES
III FSC APPLICATION DATA: PERISCOPE,TANK
MANUFACTURERS CODE: 19200
MATERIAL: GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE D, TYPE 617-550
REFRACTION INDEX: 1.6170 NOMINAL
SINGLE LENS STYLE: D1 DOUBLE CONVEX
SPECIAL FEATURES: EDGES CHAMFERED 0.010 TO 0.020 IN. BY 45 DEG. BOTH SURFACES COATED WITH MAGNESIUM FLUORIDE. RIM GROUND.
THE MANUFACTURERS DATA:

7688774

LENS,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007688774

NSN

6650-00-768-8774

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7688774

LENS,OPTICAL INSTRUMENT

NSN, MFG P/N

6650007688774

NSN

6650-00-768-8774

MFG

U S ARMY ARMAMENT RESEARCH & DEVELOPMENT COMMAND

Description

ABBE CONSTANT: 55.000
AXIAL THICKNESS: 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM
BACK FOCAL LENGTH: 3.759 INCHES
DESIGN CONTROL REFERENCE: 7688774
DIAMETER: 1.297 INCHES MINIMUM AND 1.300 INCHES MAXIMUM
ELEMENT LEFT SURFACE RADIUS: 3.100 INCHES
ELEMENT RIGHT SURFACE RADIUS: 10.000 MILLIMETERS
EQUIVALENT FOCAL LENGTH: 3.859 INCHES
III FSC APPLICATION DATA: PERISCOPE,TANK
MANUFACTURERS CODE: 19200
MATERIAL: GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE D, TYPE 617-550
REFRACTION INDEX: 1.6170 NOMINAL
SINGLE LENS STYLE: D1 DOUBLE CONVEX
SPECIAL FEATURES: EDGES CHAMFERED 0.010 TO 0.020 IN. BY 45 DEG. BOTH SURFACES COATED WITH MAGNESIUM FLUORIDE. RIM GROUND.
THE MANUFACTURERS DATA: