A cylindrical item usually having a flanged aperture designed to hold and mount an instrument in a predetermined position. Excludes holder, watch.
NSN 5835-01-154-8916
NSN 5965-00-009-8679
NSN 6685-01-027-1168
NSN 6135-01-116-3385
NSN 5855-00-247-7219
NSN 5945-00-152-9562
NSN 5925-01-485-9638
NSN 5905-01-659-4511
NSN 5855-01-110-9564
NSN 5945-01-067-7472
NSN 6135-01-247-5660
NSN 5920-01-440-9859