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 6110-01-452-8819
NSN 5935-00-846-1334
NSN 6150-01-087-4922
NSN 2925-00-146-0179
NSN 6105-00-427-9615
NSN 6320-01-377-0033
NSN 5965-01-241-0553
NSN 5935-01-453-4907
NSN 6320-00-242-3300
NSN 6105-00-074-3223
NSN 5945-01-567-0345
NSN 5996-01-416-6227