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 5905-00-967-4920
NSN 5835-01-457-7951
NSN 5895-01-062-8547
NSN 5950-00-752-4724
NSN 6220-01-634-0660
NSN 6620-00-869-9307
NSN 5835-01-328-6626
NSN 6220-01-624-7419
NSN 5915-01-032-4475
NSN 7035-00-286-6221
NSN 7035-01-395-0757
NSN 5835-01-490-9751