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 6130-01-260-7166
NSN 5910-00-162-8763
NSN 6145-00-960-9233
NSN 5905-01-167-7420
NSN 6320-01-574-1915
NSN 4140-00-726-9755
NSN 5920-01-461-3718
NSN 6105-01-513-9215
NSN 6685-01-365-5682
NSN 5925-00-938-3447
NSN 6130-01-567-8434
NSN 4140-01-168-8796