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 6110-00-342-1970
NSN 5945-01-574-0517
NSN 6320-01-056-1164
NSN 5915-01-297-2872
NSN 5945-01-343-6536
NSN 7035-00-679-9027
NSN 5905-01-179-4200
NSN 5935-01-271-2963
NSN 6610-00-657-5006
NSN 5945-01-336-1849
NSN 6320-00-336-9123
NSN 5985-01-647-0377