Quick view Add to Cart Overhaul Instructions for Ball Type Drain Valves Document Part Number: NAVWEPS 03-1-83 (T.O. No. 6R9-4-1-43) Number of pages: 12Part Number: NAVWEPS 03-1-83 (T.O. No. 6R9-4-1-43)Revision Date: 15-Mar-1952 MSRP: Was: Now: $15.00