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A-30 Cir Threaded Fuel Cap

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Overview

A30-CIR is a screw threaded fuel cap the will fit almost flush to a skin, with the riveted flange on an adjacent tank or the back of a 'wet' skin. This was designed to be fitted after painting, reducing the likelyhood of dirt/dust in the cap and the cost of masking/finishing operations.
It is available with a locking or non locking cap.
A30 L-CIR (05-06838) Locking
A30 S-CIR (05-06837) Non-Locking

Specifications

  • Outside Diameter A 94.0 mm Flange Options
  • Centre Diameter B 58.4 mm
  • Bolt Circle Dia. (PCD) C 76.2 mm A30S/L (0 Bolt)
  • Bore 44.5 mm A30S/LG (Glass flange)
  • Spigot 62.4 mm A30S/LR (Rivet on flange )
  • Body Diameter Not Applicable A36LV (6 Bolt , lock , vented )
  • Neck Diameter Not Applicable A39LV (9 Bolt , lock , vented pin)
  • Flange Thickness 3.25 mm
  • Overall Depth I 33.7 mm
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Reviews

I was pleasantly surprised to see that this thread is the same as 05-01056 flange that I originally purchased with the bayonet fuel cap and filler neck. I need a lower profile cap and this threads into the flange that is already glassed into the tank.

Michael W Verified Purchase

A30 S-Cir Unlocking Fuel Cap

February 7, 2024

Q&A

Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What size (in inches) of threaded flange fits this fuel cap? Also, are the threads metric?

2-3/16", 18TPI.

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