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 5915-01-511-1024
NSN 5996-01-082-1806
NSN 6320-01-564-0893
NSN 5945-01-379-3767
NSN 5905-01-548-0367
NSN 5905-01-462-2194
NSN 6610-00-284-3093
NSN 5855-01-258-5161
NSN 5965-01-217-0310
NSN 6150-01-195-1474
NSN 6130-01-364-0216
NSN 6645-01-553-1686