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 6145-00-174-9344
NSN 6130-00-378-9889
NSN 5998-01-227-5035
NSN 5835-01-068-3417
NSN 6130-01-073-7797
NSN 5905-01-631-2477
NSN 6105-01-351-6899
NSN 7035-00-108-4421
NSN 6645-01-245-4341
NSN 6240-00-989-4398
NSN 7035-00-264-7543
NSN 5945-01-335-5259