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 5855-01-389-8884
NSN 5935-00-298-2004
NSN 6620-01-608-8548
NSN 5835-01-274-1035
NSN 6240-00-727-8573
NSN 5985-01-423-7984
NSN 6110-01-163-5081
NSN 6135-00-777-5562
NSN 7035-01-648-5169
NSN 6240-01-415-3014
NSN 6105-00-395-1374
NSN 5835-01-512-4834