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 6135-01-302-8766
NSN 5915-00-097-8415
NSN 5930-01-359-6441
NSN 5905-01-599-9827
NSN 5965-00-258-6809
NSN 6650-00-547-4557
NSN 6645-01-444-3016
NSN 5960-01-448-3497
NSN 5999-00-948-6276
NSN 6105-01-337-4429
NSN 5835-01-616-6131
NSN 6240-01-516-8393