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 5945-01-395-8678
NSN 6150-01-629-6630
NSN 5960-01-244-1969
NSN 5855-01-122-2916
NSN 5996-01-202-9338
NSN 5935-00-238-1515
NSN 5985-00-197-1197
NSN 5920-00-256-9367
NSN 5905-00-822-6221
NSN 6620-01-029-3705
NSN 6685-00-526-0130
NSN 5855-01-626-4169