A cylindrical item usually having a flanged aperture designed to hold and mount an instrument in a predetermined position. Excludes holder, watch.
NSN 6240-01-042-3650
NSN 5835-01-468-6170
NSN 6220-00-927-0543
NSN 7035-01-211-5636
NSN 6145-01-175-2137
NSN 6645-01-618-0007
NSN 5905-01-366-7382
NSN 5965-01-344-5467
NSN 5945-00-177-4676
NSN 6610-01-442-3509
NSN 5945-01-659-9771
NSN 5905-00-238-6406