Four rounded corners 26.5 mm plus 1.0, minus 0.0 (1.0433 in.) radius
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.
Classification: Military equipments not identified by kind
NSN 6220-00-548-1999
NSN 6110-01-441-1623
NSN 5985-01-430-0143
NSN 6220-00-715-3125
NSN 6320-00-731-6134
NSN 5910-01-307-2346
NSN 5905-01-623-8697
NSN 6650-00-071-3102
NSN 4140-01-054-3553
NSN 4140-01-466-1330
NSN 7035-00-803-3056
NSN 5950-00-907-4395