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 6150-01-476-1873
NSN 6610-01-551-0774
NSN 6150-01-024-0318
NSN 5935-00-098-9135
NSN 6105-00-513-7697
NSN 6650-01-010-4204
NSN 5920-01-106-1137
NSN 6645-01-344-8702
NSN 7035-01-457-5645
NSN 2925-01-364-7926
NSN 6320-01-631-7828
NSN 6645-01-535-7136