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 5985-01-327-3017
NSN 5998-01-119-4189
NSN 5905-00-147-9902
NSN 5960-00-232-9108
NSN 6110-00-857-2293
NSN 6645-00-204-4100
NSN 6320-01-359-3921
NSN 6320-01-441-2438
NSN 6105-01-227-1194
NSN 5998-01-181-4376
NSN 6110-01-607-0891
NSN 5998-01-300-5499