NSN 6660-01-056-6191

Part Details | OPTICAL INSTRUMENT WINDOW

6660-01-056-6191 A color free item of transparent or translucent material, usually optical glass, having specific light dispersive and refractive properties. This item must have two plane-parallel surfaces and is designed for use in an optical instrument to provide a barrier to foreign matter and/or permit light transmission in or to the optical system.

Alternate Parts: 7361205, 6660-01-056-6191, 01-056-6191, 6660010566191, 010566191

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66FEB 25, 197801-056-619110908 ( WINDOW, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 6660-01-056-6191
Part Number Cage Code Manufacturer
736120507869AIR FORCE CAMBRIDGE RESEARCHLABORATORIES L G HANSCOM FIELD
Technical Data | NSN 6660-01-056-6191
Characteristic Specifications
POLISHED SURFACE BOTH
SURFACE FINISH POLISHED
DIAMETER3.995 INCHES MINIMUM AND 4.000 INCHES MAXIMUM
THICKNESS0.730 INCHES MINIMUM AND 0.770 INCHES MAXIMUM
BEVEL ANGLE IN DEG40.000 MINIMUM AND 50.000 MAXIMUM