Mounting buttons
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 5975-01-571-7912
NSN 6135-00-209-6918
NSN 5960-00-005-2080
NSN 5915-01-526-9433
NSN 2925-00-480-9068
NSN 2925-01-523-3607
NSN 2925-00-073-9375
NSN 5895-00-010-5284
NSN 4140-01-420-6263
NSN 6685-01-605-2959
NSN 6145-01-181-5405
NSN 5905-01-232-6445