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 5925-00-116-4888
NSN 6110-01-646-6227
NSN 6240-01-391-0399
NSN 6150-00-438-4940
NSN 5915-01-050-8214
NSN 6220-01-080-3155
NSN 5950-01-623-8543
NSN 5915-01-298-4075
NSN 6105-01-411-7377
NSN 6650-01-472-3955
NSN 5905-01-616-5817
NSN 6105-00-248-5772