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 6220-01-352-0396
NSN 5855-01-122-9418
NSN 5999-00-886-3038
NSN 6645-00-551-8291
NSN 5905-00-289-7407
NSN 6105-01-029-3764
NSN 5950-01-338-6449
NSN 5855-01-379-2277
NSN 4140-01-333-6052
NSN 5910-00-686-2375
NSN 5985-01-194-7925
NSN 5835-01-357-9235