A cylindrical item usually having a flanged aperture designed to hold and mount an instrument in a predetermined position. Excludes holder, watch.
NSN 5910-00-391-1048
NSN 6130-01-210-7665
NSN 5998-01-085-6299
NSN 5930-00-143-8939
NSN 5895-01-379-8611
NSN 6150-01-502-8295
NSN 5985-00-502-0400
NSN 5855-01-263-7669
NSN 5950-01-006-7865
NSN 5998-01-083-4780
NSN 7035-01-433-3547
NSN 5999-01-180-7993