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 5999-01-210-3158
NSN 5835-00-269-2232
NSN 6110-00-323-0289
NSN 6320-00-908-6841
NSN 6110-00-225-1726
NSN 5925-01-321-8068
NSN 5925-01-214-1362
NSN 5835-01-493-1826
NSN 5975-00-058-5241
NSN 6105-00-144-1754
NSN 5996-00-565-9001
NSN 6220-01-023-8818