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 5960-00-188-8648
NSN 4140-00-905-6570
NSN 5835-00-807-5632
NSN 6130-01-018-7988
NSN 5960-01-503-0362
NSN 5925-01-043-1410
NSN 6105-00-281-8185
NSN 5960-01-268-4356
NSN 6110-00-591-3934
NSN 5998-01-238-4017
NSN 6650-00-925-1274
NSN 5835-01-347-6362