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 5910-00-904-9889
NSN 6650-00-095-6490
NSN 6620-00-982-6855
NSN 6220-01-193-2021
NSN 7035-00-946-2642
NSN 5835-00-491-6075
NSN 5965-01-641-6406
NSN 5920-00-552-1567
NSN 5998-00-305-4087
NSN 6685-00-004-4751
NSN 2925-01-486-8527
NSN 5945-01-083-7334