A cylindrical item usually having a flanged aperture designed to hold and mount an instrument in a predetermined position. Excludes holder, watch.
NSN 5910-00-983-5504
NSN 5920-01-627-6344
NSN 6220-01-524-2304
NSN 5910-01-572-9036
NSN 5996-01-394-3378
NSN 6105-01-602-2246
NSN 5925-00-060-6732
NSN 5975-01-068-3043
NSN 5985-01-352-5696
NSN 6620-01-148-1675
NSN 6320-00-466-0371
NSN 6685-01-347-5281