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 6105-00-492-6159
NSN 6135-01-104-3790
NSN 5895-01-125-2219
NSN 5998-01-126-3213
NSN 6620-01-106-3553
NSN 5945-00-919-5461
NSN 5930-01-353-0423
NSN 5999-01-519-9353
NSN 4140-00-422-5571
NSN 5965-01-025-5129
NSN 5996-01-485-3840
NSN 5835-01-362-0305