1240-00-155-1728 RETICLE ASSEMBLY,OPTICAL INSTRUM Index 6650-00-155-1730 PRISM,OPTICAL INSTRUMENT

National Stock Number:
6650-00-155-1729

Federal Supply Class:
6650

National Item Identification Number:
001551729

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:
278701PC710001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
278701PC753711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
ELEMENT LEFT SURFACE RADIUS-19.409 INCHES AND 22.429 INCHES
ELEMENT RIGHT SURFACE RADIUS19.409 INCHES AND -164.818 INCHES
ABBE CONSTANT64.500 AND 36.600
AXIAL THICKNESS0.315 INCHES NOMINAL AND 0.244 INCHES NOMINAL
BACK FOCAL LENGTH45.988 INCHES
COMPOUND LENS EDGE THICKNESS0.530 INCHES NOMINAL
COMPOUND LENS OVERALL AXIAL THICKNESS0.559 INCHES NOMINAL
COMPOUND LENS STYLEDOUBLET
DIAMETER2.440 INCHES NOMINAL
EQUIVALENT FOCAL LENGTH46.322 INCHES
FRONT FOCAL LENGTH46.322 INCHES
FSC APPLICATION DATAFIRE CONTROL,RANGE FINDER MK 33 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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