Part Number 3881 having (CAGE Code 75078) and FSC 5995 Cable, Cord, and Wire Assemblies: Communication Equipment in stock with ready to ship. Get an instant quote for 3881 Wiring Harness by Jacobs Mfg Co The. Fill the form below with your desired order quantity, targeted price and the expected order-fulfilment date. Our dedicated account manager will get back to you within 15 minutes.