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 5855-01-650-9545
NSN 5950-00-102-5191
NSN 5920-01-018-4776
NSN 6650-01-280-9353
NSN 6130-01-376-2629
NSN 6650-01-117-5347
NSN 6135-00-553-7995
NSN 6220-01-616-4948
NSN 5835-00-954-2833
NSN 6110-00-521-1782
NSN 6240-00-266-6258
NSN 6110-01-129-1409