National Item Identification Number
00-891-6330
008916330
6650-00-891-6330
6650008916330
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)
5526-129-1
Required Categories
MATERIAL
POLISHED SURFACE
REFLECTION REDUCING SURFACE
POLISHED PERIPHERY
DIA
Required Description
GLASS, DD-G-451, TYPE 2, AA QUALITY
BOTH
BOTH
PROVIDED
34.500 MILLIMETERS NO