1.5" NPT Female x 1" NPSH Male Adapter Aluminum old fire hose Unauthorized uses have generally been

Unauthorized uses have generally been possible since

M - (Male)

This is a double jacketed fire hose which means there's 2 layers of woven hose (for added weight and durability) and an inside rubber lining

or yellow colored hose has two thick layers of canvas jacket polyester with cotton

whereas double jacket discharge hoses are 250 PSI

1.5" NPT Female x 1" NPSH Male Adapter Aluminum old fire hose Unauthorized uses have generally beenSpecifications Female Side 1 1. 5 NPT Female (National Pipe Tapered) Male Side 2 1 NPSH Male (National Pipe Straight Hose) 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 Standards 236 8. 1 Through 8. 2