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 5960-01-539-1956
NSN 6645-01-660-3097
NSN 5965-01-435-6644
NSN 5910-00-813-9818
NSN 5835-01-521-0298
NSN 6105-01-590-3278
NSN 6130-01-476-4057
NSN 6105-00-185-0971
NSN 5915-01-026-0457
NSN 5905-01-181-2160
NSN 6620-00-586-4357
NSN 5835-01-482-1591