2a 1st end thread class 20 1st end thread quantity per inch suppots clark model 290m; tractor, wheeled, ind., diesel driven; med dbp, nsn 2420000889284, w/rops nsn 2420010590090 cadmium surface treated nptf 2nd end thread series
2a 2nd end thread class 12 2nd end thread quantity per inch material, monel; male flare to male sil-braze, pipe; for ultrasonic testing; do not dupe to p/n-202103- (size) b, brass per navy requirements un 2nd end thread series
3a all ends thread class 2.077" overall length bulkhead threads on fluid end connection anodize body surface treated male coupling half unf all ends thread series