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 5855-00-149-0766
NSN 5945-00-835-4200
NSN 5895-01-245-7122
NSN 5905-01-125-1751
NSN 5999-01-221-5350
NSN 6320-00-422-9006
NSN 6135-01-034-2239
NSN 6610-00-688-9487
NSN 6620-00-280-2874
NSN 5920-01-441-9363
NSN 6645-01-654-9639
NSN 5998-00-577-1843