O-ring for two piece rims used on the M977 series and some M939 series. (HEMTT rims are also popular as customized replacements on other vehicles.) For 20 inch rim. 5/16 inch thick. Rated for extreme cold weather.
P/N 52-49529-00, OR-20-TUA. NSN 5331013488331.
Replaces Oshkosh 2HD735, Titan Wheel 52-49529-00013, Hutchinson 50020.
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 rims. See P/N 12363606.