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 5835-01-350-0566
NSN 6145-00-793-7816
NSN 6650-00-518-2962
NSN 5935-01-446-0564
NSN 5835-01-364-6830
NSN 5990-01-188-7309
NSN 5985-00-132-6897
NSN 6650-01-066-6666
NSN 6685-01-439-6931
NSN 2925-00-319-1805
NSN 5965-01-481-7514
NSN 6320-00-004-9158