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 one end is male 37 degree AN thread and the long threaded end is reverse flare 37 degree. Bulkhead includes nut and is -8 AN thread.
Two thin nylon washers are included with bulkhead as shown in the pictures.
Fittings are new and look like they have never been mounted. RBS has one of these, buy and save!!!!!
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.