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 7035-01-621-4812
NSN 5855-01-147-4785
NSN 5915-01-119-8051
NSN 5905-01-208-1214
NSN 5930-00-294-9189
NSN 6610-00-516-4228
NSN 5905-01-336-2983
NSN 5996-00-731-1759
NSN 2925-01-255-6394
NSN 6105-01-607-0381
NSN 5835-01-071-9310
NSN 6320-01-247-0898