National Item Identification Number
00-900-0049
009000049
6650-00-900-0049
6650009000049
National Stock Number
Item Name
WINDOW,OPTICAL INSTRUMENT
Federal Supply Class
6650
Description
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.
Commercial and Government Entity Code (Supplier Data)
11871
Reference Numbers (Part Numbers)
6800-2200
Required Categories
MATERIAL
REFRACTION INDEX
POLISHED SURFACE
REFLECTION REDUCING SURFACE
POLIS
Required Description
GLASS
1.5200 NOMINAL
BOTH
BOTH
NOT PROVIDED
64.520 MILLIMETERS NOMINAL
153