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 5835-00-419-6576
NSN 6650-01-578-5519
NSN 6610-00-949-6052
NSN 6130-00-796-7232
NSN 5990-01-041-4351
NSN 5960-01-641-5493
NSN 6220-01-527-1703
NSN 6105-01-518-4808
NSN 5990-01-100-7231
NSN 5950-01-442-8009
NSN 6620-00-290-6505
NSN 5965-01-408-9551