4" NH (NST) Female Hose Lightweight Aluminum Fire Cap 3/4" Inch NPSH Threaded Size (Inside Diameter): 6"

Threaded Size (Inside Diameter): 6" Female NPT (National Pipe Tapered)

or other coloring

Most internal fire fighting hose applications - whether from fire fighters bringing hose or stationary pin rack units - use 1-1/2" fire hose and

4" inch camlock connectors are widely used with pumps

Female Side 2 – 5” NH (NST) Female Swivel (National Hose / National Standard Thread)

4" NH (NST) Female Hose Lightweight Aluminum Fire Cap 3/4" Inch NPSH Threaded Size (Inside Diameter): 6"Specifications Female Side 4 NH (NST) Female (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 Standards 236 8. 1 Through 8. 2 USDA Standards 5100 190C Tables 1 4