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 5998-01-634-0604
NSN 5996-01-573-3119
NSN 5895-01-415-1377
NSN 5935-00-915-0422
NSN 6110-01-532-0086
NSN 5996-01-515-6895
NSN 6220-01-069-8267
NSN 5985-01-501-2335
NSN 5998-01-075-0771
NSN 6150-01-566-8415
NSN 5975-01-408-9477
NSN 5996-01-194-4498