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 6650-01-496-2662
NSN 5930-01-117-9116
NSN 5998-01-350-4498
NSN 5835-00-998-5757
NSN 6620-00-278-7313
NSN 6145-01-182-6775
NSN 6105-01-339-7053
NSN 5965-01-217-7167
NSN 5925-01-458-8262
NSN 6240-01-579-3213
NSN 5910-01-106-7548
NSN 5835-00-958-6231