Details
AC811BT16 AC811 brass coupling nut for 1 in. OD tube, NS condition.
Part Number: AC811BT16
Part Type: Nut - Coupling
Condition: NS
Thread: 1-5/16-14 (AC811 -16)
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 -16 size the AC811 thread is 1-5/16-14 while the AN818-16 is 1-5/16-12, so AC811 and AN nuts are not interchangeable in this size.
Photos are for reference only.
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