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 5895-00-736-4624
NSN 6105-01-347-0070
NSN 5996-00-292-5394
NSN 6130-01-495-1499
NSN 6620-01-476-7355
NSN 5855-00-832-9341
NSN 5965-01-142-8044
NSN 5915-00-809-6691
NSN 5985-00-074-4763
NSN 4140-01-090-8361
NSN 5975-01-618-8577
NSN 6320-01-600-0787