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 6650-00-299-9681
NSN 5855-01-463-1315
NSN 5985-01-014-6492
NSN 6110-01-433-6211
NSN 6685-00-568-8920
NSN 6105-00-175-0207
NSN 6620-01-565-4493
NSN 5950-01-260-9447
NSN 5965-00-852-6258
NSN 6610-01-224-7247
NSN 5895-01-095-9807
NSN 6135-01-079-7852