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 5935-01-412-5980
NSN 6150-01-211-5150
NSN 6240-01-209-3340
NSN 6685-01-449-1399
NSN 5965-00-499-8229
NSN 5835-00-364-0816
NSN 5920-00-344-0980
NSN 5930-00-722-4480
NSN 5920-01-606-5606
NSN 5920-00-434-0981
NSN 5895-01-195-4018
NSN 6645-01-157-9080