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 6110-01-216-3475
NSN 5945-01-437-3454
NSN 6105-00-233-7312
NSN 5835-01-659-1364
NSN 5950-01-469-2364
NSN 6220-00-953-4652
NSN 5950-01-281-0587
NSN 6135-01-461-6521
NSN 6130-01-569-1156
NSN 5950-01-559-5902
NSN 6110-01-188-6683
NSN 5935-00-018-1199