NSN 1240-00-026-8140

Part Details | OPTICAL INSTRUMENT WINDOW

1240-00-026-8140 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: 279524PC3, 279524PC3, 1240-00-026-8140, 00-026-8140, 1240000268140, 000268140

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
12JAN 01, 196300-026-814010908 ( WINDOW, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-026-8140
Part Number Cage Code Manufacturer
279524PC378039LEICA INCSURVEYING AND PHOTOGRAMMETRY SYSTEMS
279524PC310001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 1240-00-026-8140
Characteristic Specifications
MATERIAL GLASS
POLISHED PERIPHERY NOT PROVIDED
DIAMETER37.0 MILLIMETERS NOMINAL
THICKNESS4.5 MILLIMETERS NOMINAL
BEVEL ANGLE IN DEG45.000 NOMINAL
BEVEL DEPTH1.0 MILLIMETERS NOMINAL
END ITEM IDENTIFICATIONTELESCOPE MK74