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 7035-01-576-4099
NSN 2925-01-325-3974
NSN 6320-01-240-4637
NSN 5925-01-616-7552
NSN 5905-01-163-3221
NSN 5965-00-067-7393
NSN 6610-01-484-1370
NSN 5895-01-541-4812
NSN 5975-01-640-7125
NSN 5910-01-458-7014
NSN 6320-01-072-2073
NSN 6610-00-768-4559