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 5905-01-038-8657
NSN 6105-01-604-3435
NSN 5910-00-663-5865
NSN 5985-00-418-6503
NSN 5950-01-287-4414
NSN 5925-00-574-4362
NSN 6685-01-151-3991
NSN 7035-01-254-3606
NSN 5999-00-642-2188
NSN 6150-01-363-3629
NSN 5950-00-770-7309
NSN 5999-01-233-4463