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 6135-01-375-2624
NSN 5925-01-504-4765
NSN 5960-01-506-5854
NSN 5985-01-115-6439
NSN 5999-01-514-8024
NSN 7035-00-417-2967
NSN 6620-00-391-7858
NSN 6110-00-775-9161
NSN 6620-00-761-8948
NSN 5925-00-854-8076
NSN 6135-01-632-0470
NSN 5950-01-429-8956