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 5998-01-556-1500
NSN 6620-01-011-3449
NSN 6320-01-129-9656
NSN 6610-00-119-7819
NSN 5935-00-001-1860
NSN 5965-01-113-9061
NSN 5950-01-169-1462
NSN 6620-01-227-0433
NSN 5960-00-195-6435
NSN 5975-01-643-3199
NSN 6110-01-250-6886
NSN 6320-01-415-0953