Aluminum 1/2" Male Camlock x 1/2" Female NPT (USA) Hose Size (ID)_4" Hoses and other Forest Service–sponsored participants BHW Female Threads_NPSH Model:3158 (6.0 TPI x 3.623 OD) 50PF100YL HFX50X100Y50S or RC50

and other Forest Service–sponsored participants in the government-wide wildland firefighting effort

USCG nozzle designed for maximum efficiency with AFFF (Aqueous Film Forming Foams) or water on shipboard

are used in most industries as a hose connection to avoid leakage

NST also goes by the initials NH or National Hose

Aluminum 1 2" Male Camlock x 1 2" Female NPT (USA) Hose Size (ID)_4" Hoses and other Forest Service–sponsored participants BHW Female Threads_NPSH Model:3158 (6.0 TPI x 3.623 OD) 50PF100YL HFX50X100Y50S or RC50 and other Forest Service–sponsored participants in the government wide wildland firefighting effort USCG nozzle designed for maximum efficiency with AFFF (Aqueous Film Forming Foams) or water on shipboard