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 5915-00-723-8269
NSN 6610-01-096-8746
NSN 5990-00-554-0366
NSN 6110-00-082-0268
NSN 5960-01-260-7430
NSN 6150-00-127-7816
NSN 6220-01-548-0878
NSN 5910-01-250-6592
NSN 5998-00-858-6421
NSN 6145-01-562-7106
NSN 6650-01-306-8352
NSN 5905-00-143-0943