A cylindrical item usually having a flanged aperture designed to hold and mount an instrument in a predetermined position. Excludes holder, watch.
NSN 6105-00-088-2917
NSN 5999-01-560-5199
NSN 5945-01-368-2765
NSN 5996-01-505-0101
NSN 5895-01-533-0960
NSN 5835-01-248-0563
NSN 5855-00-944-0949
NSN 5960-00-057-9184
NSN 5996-00-615-6083
NSN 5910-01-443-3016
NSN 6135-00-519-1325
NSN 6645-00-064-9839