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 6110-00-946-1060
NSN 5855-01-010-4921
NSN 5985-00-335-8815
NSN 6685-00-559-2742
NSN 5950-01-379-0120
NSN 6135-01-077-5705
NSN 5999-00-146-3758
NSN 5935-00-477-8167
NSN 5920-01-475-1979
NSN 5895-01-250-2813
NSN 5915-00-516-9987
NSN 6220-01-096-9082