If routing plumbing thru a firewall, motor plate, or most any flat panel a straight AN male flare bulkhead is the answer you are after. One side of the fitting is longer allowing the use of a bulkhead nut to secure the bulkhead fitting securely thru the plate that the racer is running the bulkhead thru.
Machined from billet alum. and anodized for corrosion protection both ends are male 37 degree AN thread.
Bulkhead nut is sold separate. RBS has ONE of these bulkheads left
Note: This is a used item. This item might have been taken in on a trade. RBS may have inspected this item and deemed re-usable. There is no warranty expressed or implied with this item.