L-P-503, FEDERAL SPECIFICATION: PLASTIC ROD, SOLID, POLYVINYL CHLORIDE, RIGID (27-JUN-1967) [S/S BY L-P-1036]
L-P-503, FEDERAL SPECIFICATION: PLASTIC ROD, SOLID, POLYVINYL CHLORIDE, RIGID (27-JUN-1967) [S/S BY L-P-1036]., Cancelled and superseded by L-P-1036.