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 6110-01-169-2816
NSN 6645-01-033-5051
NSN 6150-01-102-5844
NSN 5975-01-288-0507
NSN 6620-01-039-1105
NSN 6620-01-246-4314
NSN 6130-01-655-0181
NSN 6240-01-616-2363
NSN 5835-00-034-4976
NSN 5920-01-588-4480
NSN 6645-01-545-5536
NSN 6685-01-052-2193