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 6645-00-044-7011
NSN 5998-01-224-5542
NSN 5855-00-327-2112
NSN 6135-00-255-1340
NSN 6610-00-296-5007
NSN 5945-00-877-0307
NSN 6620-00-066-1284
NSN 5835-00-931-5568
NSN 2925-01-123-2235
NSN 6145-00-241-1770
NSN 6610-00-830-4635
NSN 6105-00-063-7633