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 6685-01-096-1714
NSN 5905-00-579-0319
NSN 5905-01-397-8577
NSN 6145-01-450-2301
NSN 5985-01-501-2852
NSN 5960-01-258-6708
NSN 6105-01-145-7360
NSN 5999-01-352-8861
NSN 6320-01-390-5385
NSN 6645-00-918-3785
NSN 5895-01-440-6455
NSN 5895-01-022-2244