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 5945-01-280-4497
NSN 6610-01-260-6320
NSN 4140-01-647-4488
NSN 6610-00-734-5976
NSN 6105-01-018-6095
NSN 6150-01-537-0723
NSN 5950-01-415-6001
NSN 6130-01-018-4660
NSN 5905-01-604-3402
NSN 5920-01-464-3863
NSN 6320-01-578-6006
NSN 6650-01-067-8946