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 6650-00-009-9510
NSN 6130-01-351-7238
NSN 5910-01-215-7082
NSN 5999-01-420-2365
NSN 6240-01-528-1585
NSN 6150-01-492-9843
NSN 6145-00-877-2794
NSN 4140-01-009-3003
NSN 6320-01-608-1935
NSN 6620-01-215-0470
NSN 6145-00-433-0021
NSN 5960-00-193-6867