2a thread class right-hand 2.578" overall length 0.480" overall width 56 thread quantity per inch d shaped pin is in the 3 o'clock position unc thread series
Used on contractor logistics lifetime support (crls), hydraulic excavator type 1 (hyex)(model 230 lcr hx1), nsn 3805-01-463-0804, tm5-3805-280-24-p; mrap cougar.