diff --git a/NKC_SDK/Objects.cs b/NKC_SDK/Objects.cs
index 7fd9c7a..672fd0f 100644
--- a/NKC_SDK/Objects.cs
+++ b/NKC_SDK/Objects.cs
@@ -747,7 +747,12 @@ namespace NKC_SDK
         /// <summary>
         /// Codice ITEM esterno da cliente (HFA)
         /// </summary>
-        public string PartExtCode { get; set; }
+        public string PartExtCode { get; set; } = "";
+
+        /// <summary>
+        /// Revisione ITEM esterno da cliente (HFA)
+        /// </summary>
+        public string PartRev { get; set; } = "";
 
         /// <summary>
         /// Cod ITEM di NKC