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 5905-00-881-2322
NSN 5950-01-364-0006
NSN 6610-00-023-0076
NSN 5996-00-436-1173
NSN 5920-01-543-6348
NSN 6620-00-421-7509
NSN 6620-01-358-0205
NSN 6130-01-144-4746
NSN 5835-01-035-2976
NSN 6150-01-183-0750
NSN 6685-00-546-9323
NSN 6130-01-409-2867