A cylindrical item usually having a flanged aperture designed to hold and mount an instrument in a predetermined position. Excludes holder, watch.
NSN 5935-01-623-7926
NSN 5905-00-526-9582
NSN 5935-00-351-6960
NSN 5920-00-228-4498
NSN 5915-00-111-1905
NSN 5960-01-632-6576
NSN 2925-01-350-5440
NSN 5915-00-027-7665
NSN 5925-01-082-0591
NSN 7035-01-443-3052
NSN 5999-01-227-5001
NSN 5965-01-142-1807