O-ring for two piece rims used on the M1078 series trucks. (vehicle uses the 395/85R20 XML Michelin MSPN 32764) For 20 inch rim. 3/8 inch thick. Rated for extreme cold weather.
P/N OR-420A. NSN 5331013896028. Replaces NSN 5331013696697. Military P/N 12417331. BAE P/N 12420343. Titan Wheel 52-49610-00. Hutchinson D528280-3.
Factory original OEM part, made in USA.
Note: if the tire does not hold air this O-ring is likely not sealing correctly. Rim sealing surfaces must be free of rust and pitting for this O-ring to function correctly. O-ring should be replaced when the rim is disassembled for tire work.
Not for use on stock M35A3 or M939 series rims.