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 6105-01-361-9248
NSN 6145-01-109-4913
NSN 5965-01-633-8849
NSN 5975-01-312-8194
NSN 5910-01-467-2404
NSN 5965-01-492-5695
NSN 6620-01-032-3937
NSN 6610-00-225-9258
NSN 6645-01-632-2272
NSN 5965-01-136-7970
NSN 5950-00-722-0983
NSN 5990-01-623-0082