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 5855-01-122-9418
NSN 6320-00-646-3311
NSN 5935-00-246-4519
NSN 5935-01-564-1820
NSN 6110-00-155-4303
NSN 5855-00-174-3482
NSN 6650-00-431-9541
NSN 5985-01-337-9436
NSN 5998-01-014-9663
NSN 6650-01-640-9370
NSN 6135-01-554-8523
NSN 5996-01-155-2467