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 6620-01-477-3720
NSN 5895-01-124-1543
NSN 6320-01-029-4220
NSN 6320-01-440-8771
NSN 5945-00-937-3261
NSN 6320-01-335-8336
NSN 5945-00-935-6922
NSN 6105-01-570-4807
NSN 5998-00-174-4450
NSN 6130-00-238-6441
NSN 5985-00-787-4661
NSN 5835-01-502-9228