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 6685-01-474-7608
NSN 6240-01-098-0130
NSN 5945-00-862-3979
NSN 6645-00-864-6794
NSN 5935-01-519-9189
NSN 4140-01-517-3969
NSN 5920-01-119-6776
NSN 5935-01-441-2445
NSN 7035-00-238-3662
NSN 6105-01-026-1884
NSN 5920-00-422-5517
NSN 6105-00-234-7787