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 5895-01-551-3534
NSN 6240-00-280-8502
NSN 5990-01-571-7468
NSN 5965-00-913-9545
NSN 5998-01-469-0562
NSN 5975-01-199-2748
NSN 6150-00-854-2607
NSN 5965-00-170-5254
NSN 6240-00-197-6819
NSN 5895-01-177-6030
NSN 2925-01-654-7971
NSN 5895-01-198-6459