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 6105-01-252-8847
NSN 5999-01-363-3501
NSN 6240-01-133-1723
NSN 6110-00-902-3727
NSN 5985-00-577-2920
NSN 6645-00-358-7379
NSN 6110-00-144-6763
NSN 6110-01-566-4821
NSN 5975-00-535-9720
NSN 6150-00-979-9640
NSN 5990-00-827-0684
NSN 6320-00-036-3688