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 6145-01-234-7680
NSN 5945-01-201-8337
NSN 7035-01-158-7673
NSN 6650-00-161-2444
NSN 6685-01-212-2763
NSN 6620-01-627-0478
NSN 5835-00-794-7500
NSN 6135-01-213-7339
NSN 6240-01-346-2662
NSN 2925-01-155-5444
NSN 6620-01-135-4706
NSN 6650-01-594-0680