A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons
NSN 5965-00-524-5521
NSN 5990-00-932-3070
NSN 6320-01-132-2746
NSN 6220-00-113-8617
NSN 6320-01-578-6006
NSN 6135-00-266-9762
NSN 5998-00-326-3090
NSN 6110-00-401-4640
NSN 5920-01-044-2685
NSN 5950-00-892-9184
NSN 7035-01-081-5797
NSN 5910-01-032-5360