Parker A3C Pneumatic Coupling Nipple 1/4-18 Nptf Aro

Product Description

The PARKER A3C is a steel pneumatic hose coupling nipple designed for quick-connect air line and pneumatic system applications. Built to ARO interchange standards, this nipple mates with ARO-style couplers and fits into Series 50 pneumatic coupling systems. The 1/4-18 female NPTF threaded connection delivers a pressure-tight seal suited for compressed air service. With a maximum working pressure of 300 psi and an operating temperature range of -40 degrees F to 250 degrees F, the A3C handles the demands of shop air systems, pneumatic tools, and industrial fluid transfer lines. A zinc chromate finish provides corrosion resistance in normal service environments. HVAC, plumbing, and industrial maintenance technicians install this fitting where a reliable quick-disconnect is needed.

The PARKER A3C is used in residential and commercial pneumatic tool circuits, compressor drop lines, and general-purpose air distribution systems where ARO-style interchange couplings are the site standard. Its 1/4-18 NPTF female thread is common across air compressor manifolds, blow guns, impact wrenches, and nail gun air lines. The compact body diameter of 0.25 inches and overall length of 1.47 inches make it suitable for tight installation spaces. Maintenance technicians and pipefitters working with Series 50 ARO coupling systems will find this nipple a direct interchange replacement.

Key Features

• ARO interchange design compatible with Series 50 quick-connect coupling systems
• 1/4-18 female NPTF threaded connection for a leak-resistant pressure seal
• 300 psi maximum working pressure rated for standard shop air service
• Operating range of -40 degrees F to 250 degrees F covers most industrial and shop environments
• Zinc chromate finish resists corrosion in typical compressed air service
• Steel body construction provides durability under repeated connect-disconnect cycles

Compatibility

Designed as an ARO-interchange nipple for use with Series 50 pneumatic quick-connect couplings accepting a 1/4-18 female NPTF threaded nipple. Confirm site coupling series before ordering.

Installation Notes

Shut off and bleed all air pressure from the line before removing or installing any pneumatic coupling. Apply thread sealant appropriate for pneumatic service to the NPTF threads per the fitting manufacturer and applicable piping codes. Use a wrench on the hex flats to avoid distorting the coupling body. Do not exceed the rated working pressure of 300 psi in service.