Light deviation in any meridian not to exceed 2 min of arc and surface quali type 80-50
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 6110-01-590-9201
NSN 5920-01-440-3289
NSN 6620-01-510-3501
NSN 6685-01-468-9019
NSN 5975-01-343-0749
NSN 6150-01-088-7643
NSN 5905-01-067-9077
NSN 5910-01-066-8353
NSN 6105-01-523-9973
NSN 5950-01-209-1770
NSN 6620-00-498-7781
NSN 5985-01-244-5360