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 5905-01-390-5694
NSN 5945-01-258-5042
NSN 5945-00-281-4578
NSN 5835-01-370-8912
NSN 6150-01-388-5294
NSN 5925-00-702-4525
NSN 5835-01-031-7265
NSN 6130-01-027-0762
NSN 5925-01-647-4496
NSN 5930-01-586-7475
NSN 5895-01-632-7868
NSN 6685-01-117-9724