A cylindrical item usually having a flanged aperture designed to hold and mount an instrument in a predetermined position. Excludes holder, watch.
NSN 5945-01-043-7056
NSN 5996-01-117-4894
NSN 5835-01-626-9603
NSN 6610-01-219-1656
NSN 5935-01-323-1242
NSN 2925-00-999-3363
NSN 6685-01-641-5357
NSN 5996-01-586-9111
NSN 6320-01-643-0850
NSN 7035-01-220-6392
NSN 5950-01-257-5674
NSN 6150-00-178-0143