PN | Manufacturing No. | Thread Size | Application |
---|---|---|---|
05-01875 | F-391-18 | 18" - NPT | Stinson, Waco VK, UPF, Seabee, Bellanca, T-Craft B, Navion |
Valve mounts in the sump, the same as original plug, with no projection. Cant be knocked off or opened by particles thrown from propellers. Opens only when operated with sampler cup, rod or wire. Clear cup permits inspection for water or contaminants. FAA approved. |
If it was made to replace seal but still very good quality.
Flush Drain Valve F-391-18
Flush Drain Valve F-391-18
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Our part number for F-391-32 is 05-01876.
This does not contain an external o-ring, only an internal o-ring that cannot be replaced.
This uses an o-ring, MS29513-012 has a 3/8 I.D to fit the 3/8-24 thread pitch.