Details
AC811BT5D-S AC811 aluminum alloy coupling nut for 5/16 in. OD tube, NS condition.
Part Number: AC811BT5D-S
Part Type: Nut - Coupling
Condition: NS
Thread: 1/2-20 (AC811 -5)
The AC811-BT is the coupling nut for the three-piece AC811 flared tube system (fitting, AC811-T sleeve and BT nut), the pre-AN Army Air Corps standard that AN fittings replaced during WWII. In the -5 size the AC811 and AN818 threads are both 1/2-20, and T.O. 00-25-29 allows the AC811 nut in place of an AN818 with either AN819 or AC811 sleeves. The reverse, an AN nut on an AC811 fitting, is not an approved combination.
Photos are for reference only.
Warranty Information
All NS parts are sold "as-is". Airworthiness to be determined by an appropriately rated certificate holder. No warranty is implied. AirCorps Depot reserves the right to charge a restocking fee when deemed appropriate.
