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 5835-00-358-4235
NSN 6130-01-322-7695
NSN 6145-01-023-7719
NSN 6135-01-660-2840
NSN 5975-00-086-8300
NSN 5935-00-389-7160
NSN 2925-01-379-6183
NSN 5996-01-307-4403
NSN 5935-01-139-4744
NSN 5905-01-384-3852
NSN 6105-01-341-6142
NSN 6105-00-809-4356