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 6650-00-061-2232
NSN 5905-00-197-7674
NSN 6110-00-938-5676
NSN 5975-00-819-5531
NSN 5965-01-109-2917
NSN 6150-00-463-4005
NSN 6685-01-442-0245
NSN 6150-01-535-0669
NSN 5930-01-454-7018
NSN 5945-00-281-4578
NSN 5920-01-357-9384
NSN 5945-01-315-9553