A comparatively flat rigid item, having a centrally located aperture, designed to hold a window in position in mechanical or optical instruments. It must have drilled and/or tapped holes for mounting purposes.
Classification: Other base metal mountings, fittings etc, nesoi
NSN 6610-01-416-2738
NSN 6650-00-148-5878
NSN 7035-01-142-8036
NSN 5996-01-014-6103
NSN 5985-00-543-1022
NSN 6135-00-877-1659
NSN 6650-01-090-0719
NSN 5996-00-665-2869
NSN 5925-01-458-7000
NSN 5855-01-415-3987
NSN 7035-00-312-3055
NSN 6650-01-558-3562