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 5985-00-262-5109
NSN 5975-01-641-9201
NSN 6685-01-141-7746
NSN 6145-00-657-4755
NSN 5910-01-386-4231
NSN 5960-01-370-4285
NSN 5996-01-090-2911
NSN 4140-00-281-4493
NSN 6645-01-143-0137
NSN 5935-01-553-5262
NSN 6220-01-150-1392
NSN 6105-00-952-0104