A cylindrical item usually having a flanged aperture designed to hold and mount an instrument in a predetermined position. Excludes holder, watch.
NSN 5945-00-344-9615
NSN 5905-01-274-2624
NSN 6150-00-468-5416
NSN 5985-00-912-1565
NSN 4140-01-634-0330
NSN 5975-01-124-0353
NSN 6110-00-783-6330
NSN 5975-00-203-8416
NSN 6130-00-706-2530
NSN 6135-01-573-2428
NSN 5905-00-131-2786
NSN 5996-00-222-6049