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 7035-00-003-7518
NSN 6685-01-063-7425
NSN 2925-01-580-1527
NSN 6110-01-147-0656
NSN 5925-01-197-9232
NSN 6130-00-018-8621
NSN 5985-01-514-5569
NSN 6685-01-205-7447
NSN 5996-00-538-6069
NSN 5996-01-325-6246
NSN 5945-00-499-3934
NSN 5960-00-702-2005