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 5965-00-013-1278
NSN 6320-01-397-9995
NSN 6110-00-643-1243
NSN 6220-01-275-8548
NSN 5920-01-422-2638
NSN 5905-01-576-9362
NSN 6220-00-899-6718
NSN 7035-01-123-8723
NSN 6650-00-388-4517
NSN 6240-01-247-8074
NSN 6110-00-076-2722
NSN 5920-01-475-0443