Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NA13-PPJ4-LBCX found under Gage Pressure Dial Indicating by Weksler Glass Thermometer Corp. The National Stock Number assigned to this part is 6685002737012, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like NA13-PPJ4-LBCX.