STIHL 031 Chainsaw Half Handle Tank Housing 1113 351 0500 NOS OEM = Original Equipment Manufacturer. Part# 1113 351 0500 is the number etched into the part. This is a new unused part.
NOS - New Old Stock represents items or parts
that may no longer be available from the manufacturer. Part or part packaging may be stained, have
surface rust, be dirty from storage or packaging may be missing; however, parts
are original, unused and functional