82° finishing washers are used in non-structural interior and upholstery applications. The parts covered by NAS390 & NAS391 are getting harder to procure and do not necessarily conform exactly to all of the dimensions stated on the specs. Commercial equivalents can be supplied and are suggested. These are non-critical washers that are readily available and cost effective.
Brass, nickel plated.
I used this on a carbon fiber panel where I needed the surface area to hold the part and a clean finish (no fastner head to get hung up). Used in conjunction with Phillip head machine screws.
Great quality hardware at the right price
Part # NAS391B4P is brass.
They are nickel plated brass, the photo is accurate. They look polished like in the photos.