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 5910-01-398-9568
NSN 6650-00-754-2276
NSN 6685-00-287-7564
NSN 5998-01-447-7283
NSN 6645-01-242-9240
NSN 5920-01-311-6855
NSN 5895-00-456-0830
NSN 7035-01-029-7221
NSN 6145-01-502-5801
NSN 5895-01-194-3526
NSN 5945-00-484-2543
NSN 6320-01-255-2096