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 5975-01-074-4050
NSN 5985-00-068-4493
NSN 6685-00-099-9025
NSN 5950-00-245-1157
NSN 5905-01-060-3374
NSN 5960-01-239-9651
NSN 6105-01-058-9015
NSN 5905-00-968-8046
NSN 5985-01-225-5536
NSN 7035-01-176-7523
NSN 5950-01-588-7264
NSN 6320-01-225-9963