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 6645-00-881-9978
NSN 5895-01-411-6024
NSN 5945-00-223-7265
NSN 5945-01-207-8021
NSN 6105-00-118-5898
NSN 6320-01-116-3980
NSN 5895-00-071-2555
NSN 5960-01-428-7300
NSN 5835-00-185-4919
NSN 5835-01-193-6192
NSN 5975-00-099-9312
NSN 5990-00-226-1152