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 6110-00-186-2542
NSN 5935-00-730-0599
NSN 6130-01-649-9056
NSN 5905-00-118-5952
NSN 6240-01-073-9334
NSN 5965-01-485-8127
NSN 6150-00-935-0369
NSN 6105-01-181-4532
NSN 5998-00-962-1401
NSN 6685-00-598-1944
NSN 5895-00-244-6750
NSN 7035-01-391-7470