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 6145-01-396-9437
NSN 6645-00-613-2378
NSN 5950-00-633-8366
NSN 5895-01-174-0850
NSN 5910-01-303-0921
NSN 6610-01-047-1299
NSN 6685-00-347-5448
NSN 5835-01-381-9565
NSN 6610-01-365-7796
NSN 5905-00-312-4512
NSN 6610-01-317-4859
NSN 5945-01-406-3200