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 6220-01-406-3167
NSN 5960-01-142-1995
NSN 5998-01-415-5525
NSN 5935-01-417-2074
NSN 6145-01-305-6818
NSN 5895-00-268-7364
NSN 6145-01-386-4299
NSN 5855-00-629-5343
NSN 5985-01-033-5054
NSN 5905-00-110-7622
NSN 6145-00-548-1044
NSN 6650-00-170-5095