A cylindrical item usually having a flanged aperture designed to hold and mount an instrument in a predetermined position. Excludes holder, watch.
NSN 5855-01-440-9880
NSN 6610-00-800-7645
NSN 5960-00-807-7295
NSN 6150-01-272-0096
NSN 5835-01-610-5744
NSN 6220-01-038-8292
NSN 5905-01-083-9450
NSN 5835-00-491-3834
NSN 5835-01-416-6449
NSN 6240-01-291-4833
NSN 5910-01-403-2812
NSN 6135-01-226-4071