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 6240-01-116-3382
NSN 5999-01-092-9773
NSN 5990-01-507-7495
NSN 5945-01-051-8576
NSN 6620-01-447-9186
NSN 5945-00-530-4913
NSN 6220-01-658-3180
NSN 5915-00-990-8365
NSN 5998-01-443-0763
NSN 6135-00-840-6451
NSN 5999-01-113-0824
NSN 5920-00-417-8768