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 6220-01-047-7325
NSN 6650-00-568-9987
NSN 5975-01-632-8094
NSN 6130-00-202-4688
NSN 5985-01-362-8056
NSN 5905-01-453-2119
NSN 5835-01-285-8650
NSN 5925-01-433-2535
NSN 6685-01-401-5360
NSN 6220-00-386-0997
NSN 6650-01-429-9242
NSN 6110-01-421-2714