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 5835-00-980-0468
NSN 6650-01-014-7671
NSN 5985-01-489-6173
NSN 6620-01-163-1613
NSN 5930-00-218-4739
NSN 6105-00-344-8170
NSN 4140-01-098-4677
NSN 5998-01-278-5008
NSN 5925-01-155-3136
NSN 7035-01-337-8128
NSN 6220-01-289-4284
NSN 6685-01-623-0404