Quick Connect Hose Coupling, Industrial, Steel, Socket/ QUICK DISCONNECT NOMINAL SIZE: 0.250 INCHES MAXIMUM OPERATING TEMP: 150.0 DEG FAHRENHEIT END ITEM IDENTIFICATION: NSN 3895-01-669-1345 CONNECTION TYPE: AIR CHUCK QUICK DISCONNECT MAXIMUM OPERATING PRESSURE: 300.0 POUNDS PER SQUARE INCH PART NAME ASSIGNED BY CONTROLLING AGENCY: QUICK COUPLER PLUG MATERIAL: RUBBER SYNTHETIC MATERIAL: STEEL MEDIA FOR WHICH DESIGNED: AIR SURFACE TREATMENT: ZINC