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 6685-01-658-2363
NSN 5855-01-312-5160
NSN 6685-01-600-0433
NSN 6685-00-615-0559
NSN 6645-01-551-3703
NSN 5910-00-066-2296
NSN 5965-01-628-3283
NSN 5905-01-352-8863
NSN 5998-00-141-9190
NSN 4140-01-320-9027
NSN 5999-01-339-9403
NSN 5999-00-451-7627