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 6685-00-005-9596
NSN 5905-01-332-3123
NSN 5999-01-557-9638
NSN 5999-00-015-1282
NSN 6135-01-382-9278
NSN 6110-00-575-9795
NSN 5990-01-177-2838
NSN 6610-01-375-1527
NSN 5915-01-418-4776
NSN 5915-01-039-0289
NSN 6320-00-456-2092
NSN 2925-00-265-7539