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 6110-01-129-7135
NSN 6105-00-935-5256
NSN 7035-01-442-3987
NSN 6150-00-208-3211
NSN 5905-01-456-1640
NSN 5985-00-071-9675
NSN 6320-00-481-7291
NSN 5895-01-591-0074
NSN 6610-00-901-5137
NSN 6145-00-365-0121
NSN 5855-00-925-0114
NSN 6105-01-417-4392