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 6610-01-564-4084
NSN 7035-00-753-0695
NSN 5985-00-964-7692
NSN 6220-00-293-5368
NSN 5930-01-462-4116
NSN 5835-01-647-6426
NSN 6620-01-603-6442
NSN 5965-01-519-8228
NSN 6620-01-421-6949
NSN 6110-00-436-5462
NSN 5935-01-167-9031
NSN 6320-01-246-4390