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 5835-01-608-8868
NSN 6105-01-129-0287
NSN 6650-01-490-5205
NSN 5985-00-581-2662
NSN 6685-01-640-8979
NSN 2925-00-284-1534
NSN 6610-01-533-6046
NSN 5905-00-772-9364
NSN 5910-00-180-8208
NSN 5945-01-395-2310
NSN 7035-01-013-9889
NSN 5895-00-642-9587