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 6650-01-338-9998
NSN 6645-01-606-2164
NSN 5985-00-488-4276
NSN 5999-01-314-1778
NSN 6105-00-499-0029
NSN 5996-00-805-9340
NSN 5855-01-556-0263
NSN 6685-01-388-1730
NSN 6610-00-994-0190
NSN 5999-01-446-6541
NSN 5855-01-033-1375
NSN 4140-00-269-1672