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 6320-01-622-5493
NSN 5905-00-916-4110
NSN 6130-01-460-0554
NSN 5855-01-145-4903
NSN 5920-00-243-2023
NSN 5835-00-644-4512
NSN 6105-01-441-8547
NSN 6610-00-938-6567
NSN 5950-00-300-4763
NSN 5965-01-485-0940
NSN 6645-00-099-6913
NSN 5975-00-397-9533