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 6130-01-362-7509
NSN 6220-01-477-5001
NSN 7035-01-413-6697
NSN 6105-00-194-8609
NSN 5945-01-270-7461
NSN 5835-00-969-5771
NSN 6130-00-035-3898
NSN 5975-00-428-1683
NSN 5985-01-517-9935
NSN 6150-00-148-3909
NSN 5920-00-456-5211
NSN 6105-01-430-5401