Quick view Add to Cart Overhaul Instructions with Parts Breakdown for Air Shutoff Gate Valve Part No. 2520-072 Document Part Number: NAVWEPS 03-80E-66 Number of pages: 8Part Number: NAVWEPS 03-80E-66Revision Date: 1-Apr-1966Description: Manufactured by: Transco MSRP: Was: Now: $15.00