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 5998-00-336-2396
NSN 6220-00-339-1310
NSN 6240-00-777-8535
NSN 6110-01-398-0212
NSN 5965-01-267-5263
NSN 5895-01-364-1017
NSN 7035-01-023-7859
NSN 7035-01-552-9759
NSN 5999-01-467-3334
NSN 6150-00-304-7342
NSN 6645-01-372-6012
NSN 5915-01-358-4311