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 6220-01-311-0196
NSN 5945-01-037-2158
NSN 6685-00-196-5592
NSN 7035-01-061-6424
NSN 5985-01-320-0016
NSN 5999-01-447-8877
NSN 5990-01-389-1196
NSN 6220-00-127-3805
NSN 5960-01-169-1372
NSN 6110-00-008-4333
NSN 6650-01-574-4179
NSN 5895-01-519-9373