Up for sale is for 4 New Old Stock Factory Original Stainless Steel Chain Pin Spring Retainers. Part number for  Reference in all TM/Parts Manual's is MS29523-1. These 4 Pin Retainers were used on all the Oil, Water, Fuel Cap Stay Chains on all the M151 A1 A2 Military MUTT/Jeeps. These were also used on also Many Many other M-Series Vehicles as well, such as the M54/M561/M35/M38/M37'S ect... Thank You for viewing my Sale! Note* I do combine shipping on multiple items purchased. Please Check out my other items! many New and Used parts for the M151'S.