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 6105-01-263-3989
NSN 5998-01-518-6639
NSN 6650-00-008-9646
NSN 4140-01-627-6257
NSN 7035-01-411-2625
NSN 5945-00-884-4690
NSN 5835-01-313-7054
NSN 5915-01-441-2982
NSN 6130-01-461-9748
NSN 6130-01-537-7617
NSN 6320-01-407-8663
NSN 5960-01-359-4257