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 5965-01-125-0268
NSN 5996-01-476-1126
NSN 6320-00-270-8222
NSN 5920-01-647-5869
NSN 5990-01-141-3562
NSN 5960-00-594-0824
NSN 5905-01-616-1411
NSN 5935-00-861-5829
NSN 5835-00-034-4976
NSN 6105-00-855-0760
NSN 6145-00-913-0037
NSN 5835-01-416-6455