MIL-W-3970C (SUPPLEMENT 1), MILITARY SPECIFICATION: WAVEGUIDE ASSEMBLIES, RIGID, GENERAL SPECIFICATION FOR (07-JUN-1983) [S/S BY MIL-DTL-3970D]
MIL-W-3970C (SUPPLEMENT 1), MILITARY SPECIFICATION: WAVEGUIDE ASSEMBLIES, RIGID, GENERAL SPECIFICATION FOR (07-JUN-1983) [S/S BY MIL-DTL-3970D].