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 5965-01-325-7721
NSN 5930-00-869-6622
NSN 6685-01-534-8535
NSN 5835-01-587-8787
NSN 5915-01-434-5094
NSN 2925-01-243-0328
NSN 6610-01-354-7963
NSN 6105-00-456-9829
NSN 6610-00-226-4710
NSN 5985-01-634-0635
NSN 6685-01-149-1708
NSN 6650-00-859-1859