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 6240-00-224-1880
NSN 6130-01-118-4654
NSN 5905-01-524-8329
NSN 6145-01-067-6456
NSN 5920-01-464-3105
NSN 6220-00-682-4848
NSN 6320-00-336-9123
NSN 6105-01-646-1110
NSN 5910-01-062-4270
NSN 2925-01-628-7580
NSN 6320-01-366-5157
NSN 6240-00-300-9883