3a 1st end bulkhead thread class 12 1st end bulkhead thread quantity per inch grumman aerospace inc supports A10 aircraft anodize surface treated unj 1st end bulkhead thread series
Used on clark model 290m;tractor,wheeled,ind.,diesel driven;med dbp,nsn 2420000889384,w/rops nsn 2420010590090. N1 outside hexagon or octagon (partial or full thread optional)