Earls 178007ERL Stat-O-Seal, 7/16 Inch Diameter, Fits -4 AN Fitting

The Stat-O-Seal is very simply the best sealing washer available. It consists of a synthetic rubber O ring mechanically locked to the I.D. of an aluminum washer. When tightened, the O ring is compressed, forcing the sealing surfaces around the bolt shank. They will form a positive seal over a temperature range of -85° to +450° F. They provide the advantages of an O ring type seal without the necessity of machining O ring grooves into the part. In any application where you are now using a copper or aluminum sealing washer, the Stat-O-Seal will do a better job.

• Best Sealing Washer Available
• Synthetic Rubber O-Ring
• Mechanically Locked
• O-Ring Compresses
• Forces Sealing Surfaces
• No Machining Of Grooves