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 6130-00-473-6132
NSN 6110-01-360-0453
NSN 6105-01-086-6149
NSN 5945-00-337-6767
NSN 7035-01-261-9850
NSN 5996-00-348-3844
NSN 6105-00-344-8170
NSN 5996-00-773-9569
NSN 5895-01-245-8517
NSN 5895-01-197-9849
NSN 5950-01-567-7424
NSN 6650-01-052-8863