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 7035-01-520-5648
NSN 6685-01-340-0784
NSN 6645-01-482-9704
NSN 5960-01-506-5854
NSN 5910-01-185-0190
NSN 5998-00-327-8191
NSN 6130-00-873-4468
NSN 5999-01-510-4358
NSN 6105-00-506-2289
NSN 5855-00-149-0766
NSN 5985-01-423-9447
NSN 5999-01-423-5250