6650-00-026-8134 LENS,OPTICAL INSTRUMENT Index 6650-00-026-8136 LENS,OPTICAL INSTRUMENT

National Stock Number:
6650-00-026-8135

Federal Supply Class:
6650

National Item Identification Number:
000268135

Description:
LENS,OPTICAL INSTRUMENT

Detail:
An unmounted, transparent, color free lens which may be treated with a low reflection coating to increase light transmission. Includes single and compound elements. For items having two plane parallel surfaces, see WINDOW, OPTICAL INSTRUMENT. Excludes RETICLE, OPTICAL INSTRUMENT.


Manufacturer Information:
278702PC1110001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
278702PC1153711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
ELEMENT RIGHT SURFACE RADIUS-11.681 INCHES AND 116.157 INCHES
ELEMENT LEFT SURFACE RADIUS-11.681 INCHES AND 13.078 INCHES
ABBE CONSTANT64.500 AND 36.600
AXIAL THICKNESS0.345 INCHES NOMINAL AND 0.276 INCHES NOMINAL
BACK FOCAL LENGTH27.169 INCHES
COMPOUND LENS EDGE THICKNESS0.577 INCHES NOMINAL
COMPOUND LENS OVERALL AXIAL THICKNESS0.622 INCHES NOMINAL
COMPOUND LENS STYLEDOUBLET
DIAMETER2.283 INCHES NOMINAL
EQUIVALENT FOCAL LENGTH27.562 INCHES
FRONT FOCAL LENGTH27.559 INCHES
FSC APPLICATION DATAFIRE CONTROL,RANGE FINDER MK 37 MOD 5
INDIVIDUAL LENS STYLEDOUBLE CONVEX AND MENISCUS DIVERGING
MATERIAL DOCUMENT AND CLASSIFICATIONJAN-G-174, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE
MATERIALGLASS OPTICAL
REFRACTION INDEX1.5170 NOMINAL AND 1.6170 NOMINAL


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