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 6610-01-202-7404
NSN 6130-01-272-2166
NSN 6110-00-469-7981
NSN 5930-00-929-9616
NSN 5925-01-364-0771
NSN 5915-01-459-8046
NSN 5965-01-207-0991
NSN 6645-01-369-4371
NSN 6320-00-701-0437
NSN 6320-01-094-2634
NSN 6150-00-599-0721
NSN 5975-00-226-1167