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 6110-01-316-8638
NSN 5915-00-211-7060
NSN 5935-01-605-4812
NSN 6650-01-395-5991
NSN 4140-01-519-1870
NSN 5915-01-519-3287
NSN 6685-01-132-4637
NSN 5985-01-350-3283
NSN 6610-00-902-7505
NSN 5950-01-528-3624
NSN 6320-01-514-6141
NSN 5855-01-078-3128