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 6135-00-240-3200
NSN 5835-00-275-0584
NSN 5985-00-755-1599
NSN 5960-00-081-0581
NSN 5999-01-461-7135
NSN 5990-01-460-6390
NSN 6685-00-981-5134
NSN 6685-01-357-9082
NSN 6650-01-627-7681
NSN 5920-01-599-8622
NSN 6220-00-233-7436
NSN 5996-01-006-6346