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: Gaskets,washers & other seals
NSN 6650-01-131-5149
NSN 6130-00-082-1262
NSN 7035-01-633-9537
NSN 6685-01-386-0327
NSN 5945-00-445-1328
NSN 6130-00-222-5291
NSN 6645-01-224-0101
NSN 5935-01-109-0467
NSN 5965-01-277-4161
NSN 5855-01-120-7831
NSN 5910-01-174-1116
NSN 5935-01-051-3979