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 6105-01-350-9211
NSN 4140-00-729-6852
NSN 5999-01-206-3131
NSN 6650-01-376-1692
NSN 6220-01-340-8684
NSN 5965-00-076-9561
NSN 6240-01-205-4784
NSN 7035-00-585-2113
NSN 5910-01-419-3684
NSN 5855-01-264-8599
NSN 6610-01-445-9580
NSN 5915-01-528-1950