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 6620-00-366-1365
NSN 5835-01-341-7446
NSN 5950-01-131-1724
NSN 5998-01-014-8797
NSN 5975-01-136-0205
NSN 6150-00-146-3746
NSN 6320-00-116-3658
NSN 6620-00-168-0308
NSN 6105-00-499-5200
NSN 5965-01-485-4088
NSN 5960-01-443-3067
NSN 7035-00-782-7046