1/2" - 14 x 1/4".

Old Part Numbers: ST070387AV-MAT1/4"-18 NPT x 2.5" long pipe nipple for air compressors. Don't forget to apply plumbers' (teflon) tape to the threads for a tight seal.Extra DetailsIf you have a Campbell Hausfeld/Husky model, this will fit the WL651001...

Old Part Numbers: 68-4-21/8" male NPT x 1/4" compression adapter for air compressor unloader/bleeder line. A very common adapter to attach the 1/4" OD unloader/bleeder line from the unloader valve on the pilot valve to the pump head.

Old Part Numbers: BG217000AJSquare Wire Air Compressor Belt Guard (Front).  If you need the back Belt Guard as well, order BG217100AV.

Old Part Numbers: BG217100AJNew OEM belt guard replacement (back). This is the base of the belt guard that fastens to the compressor. Protect your fingers from moving parts. OSHA required.

Old Part Numbers: 154-5L700Air compressor v-belt, 5L700. Replace if frayed or slipping.Specifications B-type belt, 5/8" wide Outside Dimension: 70" "B" Belt Conversion: B67

(not shown) - Flywheel Key. 3/8" key