4" NH (NST) Female Swivel x 4.5" NH (NST) Male Adapter Aluminum DMH3025F 5" NPT Pipe To 3"

5" NPT Pipe To 3" NPSH Pipe Hex

Both NH and NST are the same thing

5" NPT Pipe Male Pin Lug

5" NST (NH) Male HexAdapter

5" NPSH Male (National Pipe Straight Hose)

4" NH (NST) Female Swivel x 4.5" NH (NST) Male Adapter Aluminum DMH3025F 5" NPT Pipe To 3"Specifications Female Side 1 4 NH Female (National Hose National Standard Thread) Male Side 2 4. 5" NH Male (National Hose National Standard Thread) Working Pressure 300PSI Max Test Pressure 1000PSI Max Material T 6061 Aluminum (Aircraft Grade) Finishing Anodized (99. 9% Lead Free) NFPA Standards 1963, 4. 12, 5. 1 5. 6. 4 (Corrosion Resistance) Military Standards MIL A 8625 Type III, Class 1 Industrial Standards International ASTM B221 UL Labs