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 6685-01-205-0467
NSN 5835-01-004-8997
NSN 6320-01-576-6310
NSN 5920-00-850-1773
NSN 5935-00-214-6270
NSN 6320-01-383-3257
NSN 6620-01-544-4857
NSN 5910-01-170-4424
NSN 5990-00-583-9577
NSN 7035-01-188-5935
NSN 6150-00-796-7826
NSN 5945-01-429-7567