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 6650-01-167-1311
NSN 5925-01-409-2616
NSN 6685-01-612-8291
NSN 5945-00-072-6890
NSN 5985-01-054-3801
NSN 5930-01-652-3696
NSN 6105-01-024-9907
NSN 6240-01-420-5905
NSN 6240-01-648-0114
NSN 5930-01-084-8299
NSN 5855-01-409-1792
NSN 6320-01-607-1491