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 5855-00-118-8762
NSN 6685-01-123-8900
NSN 6645-01-359-1487
NSN 6320-00-036-3688
NSN 6150-01-373-4338
NSN 6105-01-406-3627
NSN 6110-01-243-2989
NSN 5996-01-616-4615
NSN 5930-01-437-8024
NSN 5925-01-607-6279
NSN 5835-00-269-2232
NSN 5895-01-419-8170