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 6650-01-451-8461
NSN 5960-00-167-7875
NSN 5920-01-073-1231
NSN 5930-01-411-1948
NSN 5910-01-044-5618
NSN 5920-00-135-4930
NSN 7035-00-946-2642
NSN 5985-01-060-6031
NSN 6240-01-462-5433
NSN 5965-00-725-4453
NSN 5998-01-359-3404
NSN 6105-00-490-6035