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 5915-01-530-6333
NSN 5996-01-544-1467
NSN 6650-01-227-8427
NSN 6610-00-572-1284
NSN 6105-01-327-1195
NSN 6220-00-424-1504
NSN 6145-00-267-9617
NSN 5855-00-138-2386
NSN 6220-01-634-0660
NSN 6220-01-323-7897
NSN 5835-01-381-2683
NSN 6320-01-607-1491