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 6610-00-222-9273
NSN 6240-01-071-2127
NSN 5915-01-048-3671
NSN 6645-01-438-6986
NSN 5999-00-436-0085
NSN 5965-01-380-5873
NSN 5835-01-599-1876
NSN 2925-00-905-2655
NSN 5950-00-316-3533
NSN 2925-01-556-0333
NSN 5945-00-982-3621
NSN 5905-01-048-8527