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 6645-01-259-7133
NSN 5999-01-104-4591
NSN 6240-01-649-4420
NSN 6685-00-194-3571
NSN 5965-01-279-1075
NSN 6650-01-039-9340
NSN 5935-00-433-1807
NSN 5990-01-564-9532
NSN 5965-00-739-2063
NSN 7035-01-227-2546
NSN 6685-00-216-6676
NSN 5965-01-288-4736