A cylindrical item usually having a flanged aperture designed to hold and mount an instrument in a predetermined position. Excludes holder, watch.
NSN 5930-01-472-4841
NSN 5930-01-329-2310
NSN 5920-01-569-5751
NSN 5905-00-167-6872
NSN 5945-00-216-3423
NSN 6610-00-614-7943
NSN 5930-01-167-8532
NSN 5855-00-962-5792
NSN 6220-00-478-6480
NSN 5975-01-463-3700
NSN 5905-00-165-3284
NSN 6620-01-345-4835