4NS6-B, Dix-Lock N-Series F Head Coupler Standard Hose Barb, 1/2", , BrassSpecificationsRated pressure for connected Steel Coupler & Steel Plug: 500 PSI (35 bar) Maximum Working and 11,000 PSI (755 bar) BurstConforms to MIL-C-3486 and A-A-50431A standardsConstructionMachined components are manufactured using solid bar stock.Nitrile (Buna-N) seals standardSteel componentry is plated using ROHS Compliant Trivalent Chrome.Compatibility & Interchange DataBowes Interchange Bayonet StyleInterchangeable with Bowes 51000-Series, National Series 'B', MacDonald Quick-Action, Campbell Single-LockSafety NotesOperating pressure for couplings utilizing hose barb connections may be dramatically reduced to that of the hose rating and/or hose end connection combination. Consult hose manufacturer's catalog for hose end connection ratings. If in doubt, test under controlled conditions for suitability to application.