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 7035-01-098-5474
NSN 5999-01-448-7834
NSN 5996-00-247-3808
NSN 5935-01-291-4454
NSN 6135-01-010-0891
NSN 5920-00-119-1406
NSN 5990-00-772-3596
NSN 7035-00-215-3272
NSN 6650-01-485-1580
NSN 7035-00-368-0444
NSN 5965-01-422-0344
NSN 6240-01-538-5133