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 5960-01-530-0581
NSN 5925-01-458-2342
NSN 6110-01-222-0767
NSN 5985-01-268-3354
NSN 5895-01-188-7470
NSN 5835-01-449-7511
NSN 5965-01-562-8547
NSN 5985-01-564-7573
NSN 5996-01-233-5752
NSN 5998-00-481-4124
NSN 5925-01-129-4135
NSN 5920-01-255-0816