WW-U-531F (NOTICE-3), FEDERAL SPECIFICATION: UNIONS, PIPE, STEEL OR MALLEABLE IRON: THREADED CONNECTION, 150 LB, 250 LB, 300 LB WSP (21-MAR-1997) [S/S BY ASME-B16.39]

WW-U-531F (NOTICE-3), FEDERAL SPECIFICATION: UNIONS, PIPE, STEEL OR MALLEABLE IRON: THREADED CONNECTION, 150 LB, 250 LB, 300 LB WSP (21-MAR-1997) [S/S BY ASME-B16.39]., This cancellation is approved by the Commissioner, Federal Supply Service, General Services Administration. This Notice 3 provides correction in the cross-reference of coating requirements as appear in page 2 Table, of Notice 2. WW-U-531F, dated 16 April 1984, has been superseded by ASME B16.39, Malleable Iron Threaded Pipe Unions. Cross-reference of classification is as follows: