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 2925-01-116-6838
NSN 6130-00-421-7385
NSN 5915-01-346-4987
NSN 6645-01-079-9216
NSN 6620-00-376-7046
NSN 5965-01-354-9834
NSN 5925-01-188-1170
NSN 2925-01-267-1598
NSN 6105-00-527-8571
NSN 6110-01-126-8402
NSN 7035-01-179-5667
NSN 6650-01-014-5990