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 7035-01-388-6943
NSN 6220-00-229-3796
NSN 6105-01-428-4411
NSN 5998-01-044-5169
NSN 6130-01-314-1705
NSN 5965-00-071-0562
NSN 5965-01-280-3772
NSN 6130-01-241-8267
NSN 6240-00-104-4662
NSN 5895-01-525-7645
NSN 5855-01-542-9059
NSN 6320-00-139-1090