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 5945-01-647-3839
NSN 6135-01-278-9717
NSN 5915-01-062-4274
NSN 5855-00-782-7714
NSN 6685-00-473-8208
NSN 6645-00-225-2742
NSN 6110-01-495-0293
NSN 5999-01-018-9346
NSN 6320-01-607-1491
NSN 4140-01-116-4604
NSN 5965-01-020-4104
NSN 5945-01-201-7433