A cylindrical item usually having a flanged aperture designed to hold and mount an instrument in a predetermined position. Excludes holder, watch.
NSN 5855-00-058-1293
NSN 5925-00-469-7683
NSN 6685-01-560-3479
NSN 6150-00-531-6440
NSN 5930-01-521-5738
NSN 5990-01-411-5930
NSN 6645-01-554-2871
NSN 5930-01-569-1460
NSN 6130-01-280-8810
NSN 6130-01-033-8533
NSN 5925-00-359-4087
NSN 5996-01-437-6577