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 5915-00-107-6828
NSN 2925-01-139-7106
NSN 5935-01-579-4634
NSN 6645-01-096-4270
NSN 6320-00-310-1080
NSN 6220-01-194-6591
NSN 5905-01-113-8046
NSN 6685-00-256-6591
NSN 6105-01-069-2354
NSN 5999-01-575-9055
NSN 6650-00-976-2507
NSN 6105-00-938-9212