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 5905-01-435-1024
NSN 6610-01-462-5211
NSN 6220-01-102-3580
NSN 6130-01-626-0827
NSN 6620-01-247-4127
NSN 5905-01-458-6336
NSN 6150-01-015-9528
NSN 6620-00-150-6514
NSN 6105-01-446-6250
NSN 7035-00-286-6221
NSN 5895-01-592-3082
NSN 5920-01-385-1188