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 7035-01-145-5059
NSN 5945-01-535-0158
NSN 4140-01-165-4561
NSN 5920-01-301-3837
NSN 5965-01-068-2714
NSN 5925-00-594-0840
NSN 5905-01-623-8562
NSN 6320-00-036-3688
NSN 5996-01-015-7604
NSN 6610-01-329-8017
NSN 6650-01-612-1457
NSN 5905-00-638-6776