Part Number: 4350-6L

VALVE, Fuel Drain, 7/16""-20

Product Details


Thread Locking Flush Mounted Open Action Use Pin Type Cup Material Approval
7/16-20 UNF No No Push No Aluminum, Anodized FAA-TSO-C76

Stem can be cut to length per the the application. 


Thread: "UNF" (Fine thread) type are straight, non-sealing threads that rely on an o-ring to provide a seal. "NPT" (Pipe thread) type are tapered thread that seal as they are tightened. Measure the O.D. of the thread on the valve you are replacing and compare to the thread specifications table to determine the correct thread size.
Locking: Valve locks in the open position for easy draining.
Flush mounted: Valve is designed to mount flush with aircraft skin.
Use Pin Type Cup: Pin type cups similar to MCCCA-39680 may be used with indicated valves for sampling fuel.
Open Action: "Spiral" valves require a push and turn action to open. "Push" valves require a push action to open.


SAF-AIR Specialty Fuel Drain Valves

High Quality, Low Price!


  • 3/8" NPT 
  • Manufactured with 360 brass
  • Push-to-test or push-and-twist to lock the valve open 
  • FAA & TSO-C76 Approved


Find the replacement o-ring kit for your SAF-AIR valve: O-Ring Kits.

All SAF-AIR O-rings are made of Viton.



warningWARNING: Cancer and/or Reproductive Harm -


Eligibility Notice

Please verify that this product is eligible for your aircraft before adding it to your cart.

Click here to view product eligibility.
OEM Part Number McFarlane Part Number Comment
50C-2 4350-6L

Eligible Aircraft

Make Series Model Beginning S/N Ending S/N Quantity Per Aircraft Location Comment Eligibility Chart
Many Many Many 0 ZZZZZZZZZZZZZZZ FAA & TSO-C76 Approved. Installer must determine eligibility. 6637

Related Documents

Safety Data Sheets (SDS)

SAF-AIR Anti-Seize Lubricant

Product Catalogs and Price Lists

Current McFarlane Product Catalog

Installation, Use, and Maintenance Instructions

SAF-AIR Fuel Drain Valve Installation and Maintenance Instructions

Eligibility Charts

SAF-AIR Vendor Eligibility Reference

Frequently Asked Questions

How do I maintain my fuel and oil drain valves?
How do I keep contaminants out of my fuel system?