A cylindrical item usually having a flanged aperture designed to hold and mount an instrument in a predetermined position. Excludes holder, watch.
NSN 5950-01-360-3168
NSN 7035-01-621-9471
NSN 6240-01-200-7937
NSN 2925-01-502-2385
NSN 6650-01-600-2980
NSN 5945-01-579-3801
NSN 6110-01-198-1557
NSN 5910-01-659-8158
NSN 6220-01-462-4715
NSN 7035-00-870-0290
NSN 7035-01-123-0085
NSN 5945-00-420-5430