5306-01-153-8281 (471667)
NSN 5306-01-153-8281 (NIIN 01-153-8281) is an u bolt in Federal Supply Class 5306, Bolts — an externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded. Manufacturer part number 471667 (General Motors LLC, CAGE 7X677); also referenced as 5306011538281 (E.C.A Etablissement Central Des).
Key specs: 23 to 32 rockwell c overall hardness; full characteristics table below. NIIN assigned May 1983; DEMIL A (none required); unit of issue EA (each), $83.25 gov standard price; ships at 1.61 lb / 0.0165 cu ft.