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 5945-01-260-1116
NSN 6610-01-433-2219
NSN 6650-01-064-8941
NSN 5990-01-485-0260
NSN 5950-00-755-9638
NSN 5945-01-392-0898
NSN 6645-00-893-4190
NSN 6150-01-385-4197
NSN 5975-00-353-2244
NSN 6220-01-415-0553
NSN 5905-01-514-7467
NSN 5975-01-603-6505