A cylindrical item specifically designed to hold a lens, reticle, or window in an optical system. Includes eccentric cells and/or rings designed to be rotated within the instrument to shift an optical element to a prescribed position.
Classification: Military equipments not identified by kind
NSN 5990-01-468-1292
NSN 5905-01-469-6665
NSN 6145-00-952-9290
NSN 6135-01-622-1296
NSN 5920-01-533-2602
NSN 5905-00-150-5411
NSN 5910-00-081-3468
NSN 4140-01-504-5514
NSN 6320-00-004-9158
NSN 6320-01-449-1014
NSN 5990-00-834-1744
NSN 6610-00-561-5600