National Item Identification Number
01-378-3460
013783460
6650-01-378-3460
6650013783460
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)
Reference Numbers (Part Numbers)
J72S0010-1
Required Categories
REFRACTION INDEX
SURFACE FINISH
WIDTH
LENGTH
THICKNESS
SPECIAL FEATURES
II
Required Description
1.5170 NOMINAL
GROUND
1.980 INCHES NOMINAL
1.980 INCHES NOMINAL
0.250 INCHES