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 5985-00-489-3274
NSN 6105-01-429-1502
NSN 5996-01-433-7082
NSN 5945-00-875-8886
NSN 5910-01-213-5380
NSN 6240-01-250-3574
NSN 6105-00-153-7967
NSN 6650-01-157-8806
NSN 6645-01-032-5337
NSN 7035-01-631-7017
NSN 6150-00-880-3230
NSN 5985-01-141-0875