National Item Identification Number
00-530-0736
005300736
6650-00-530-0736
6650005300736
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)
30003
Reference Numbers (Part Numbers)
1028021
1028021
Required Categories
MATERIAL
REFRACTION INDEX
DISPERSION
POLISHED SURFACE
REFLECTION REDUCING SU
Required Description
GLASS, OPTICAL, JAN-G-174, TYPE 517-645
1.5170 NOMINAL
64.5 ANGSTROMS NOMINAL;