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 6110-00-168-8683
NSN 2925-00-408-9829
NSN 5945-01-304-5737
NSN 6130-00-647-8471
NSN 6105-01-228-0112
NSN 5998-01-543-2415
NSN 6130-00-539-6809
NSN 5935-01-585-4078
NSN 5960-00-636-4834
NSN 6145-00-147-5440
NSN 5998-01-011-5877
NSN 6240-00-688-6351