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 6135-01-461-2915
NSN 5950-01-219-5600
NSN 5935-01-074-4526
NSN 5950-01-132-1322
NSN 5915-01-603-0012
NSN 5910-01-125-2671
NSN 6685-00-656-5057
NSN 5990-00-905-6472
NSN 6135-01-592-4139
NSN 5998-00-419-8584
NSN 5945-01-201-6346
NSN 5965-01-012-1065