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 5945-00-306-9191
NSN 5998-00-466-2301
NSN 5935-01-206-7538
NSN 5999-00-811-7885
NSN 6240-01-424-3090
NSN 5930-01-541-8908
NSN 5925-01-544-8744
NSN 6150-01-196-0179
NSN 5999-00-201-0818
NSN 5920-00-056-7806
NSN 5910-01-612-7198
NSN 6240-00-956-6424