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 6645-01-609-7365
NSN 6130-00-421-0106
NSN 6240-01-156-8428
NSN 6130-01-455-7261
NSN 5835-01-359-2575
NSN 5985-00-053-1598
NSN 5920-00-276-8657
NSN 5855-01-205-7030
NSN 5998-00-463-4463
NSN 5990-01-254-3197
NSN 6610-01-316-2738
NSN 7035-00-631-3782