NSN 1240-00-542-8993

Part Details | OPTICAL INSTRUMENT WINDOW

1240-00-542-8993 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: 427R475H01, 1240-00-542-8993, 00-542-8993, 1240005428993, 005428993

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
12OCT 02, 197400-542-899310908 ( WINDOW, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-542-8993
Part Number Cage Code Manufacturer
427R475H0197942NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV NORTHROP GRUMMAN SYSTEMS
Technical Data | NSN 1240-00-542-8993
Characteristic Specifications
MATERIAL GLASS
SURFACE FINISH FINE GROUND
DIAMETER0.490 INCHES NOMINAL
THICKNESS0.080 INCHES NOMINAL