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 5935-01-593-4872
NSN 6110-01-365-4649
NSN 5835-00-874-1085
NSN 5985-01-428-2254
NSN 5960-01-006-8469
NSN 6240-01-516-8393
NSN 5935-01-327-9412
NSN 4140-01-430-9115
NSN 7035-01-271-1643
NSN 5999-01-437-1252
NSN 6620-01-462-0001
NSN 5935-01-091-7368