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 6150-01-554-3712
NSN 5925-01-496-3953
NSN 6620-00-701-3575
NSN 5965-00-182-7928
NSN 6110-01-465-2800
NSN 6645-00-244-0359
NSN 5925-01-231-5423
NSN 5910-00-269-3537
NSN 6650-00-185-8344
NSN 5905-00-110-0702
NSN 5998-01-386-3123
NSN 6130-00-111-7906