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 5965-00-223-0020
NSN 6150-00-389-6771
NSN 7035-01-176-4857
NSN 5835-01-589-4735
NSN 6105-01-246-5297
NSN 5915-00-440-0756
NSN 5990-00-956-9130
NSN 5925-00-140-6367
NSN 6240-01-036-4073
NSN 6220-01-299-4392
NSN 6150-01-419-1927
NSN 7035-01-289-0684