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 6610-01-386-4582
NSN 5950-00-760-6805
NSN 5950-01-454-2593
NSN 2925-01-307-7429
NSN 5855-01-524-9353
NSN 5998-01-634-0604
NSN 5950-01-324-6563
NSN 5855-01-542-9059
NSN 6240-01-152-2662
NSN 6645-00-066-6868
NSN 6130-00-776-6081
NSN 5910-00-404-9066