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 5999-01-318-1334
NSN 6610-01-514-7755
NSN 5996-01-095-9651
NSN 5935-00-189-0200
NSN 6110-00-781-4285
NSN 5965-01-386-9281
NSN 6320-00-731-6134
NSN 5920-01-108-9400
NSN 6220-00-670-8793
NSN 5895-01-629-7538
NSN 5915-01-050-8214
NSN 6240-00-461-1451