Picked up a box of 50 of these a few days ago for a fair price:
The GM part number (145525) is the same as in the M38 & M38A1 ORD 9 manuals, and other than a slight difference in the stated size (3/16" compared with 7/32") they seem very close to the originals.
A google search for "GM 145525" brings up quite a few vendors, at varying prices. Unfortunately, only in boxes of 50.......
Owen.
Owen
1951 US Air Force M38
1944 F-1 1/2-ton Airdrome Trailer
1940 C15 Chevrolet CMP 11-cab
1939 DKW KS200 Motorcycle
MVT # 19406
Thanks for the great part reference. It is great to find a very close or exact modern equivilant. Sounds like these would be difficult to tell apart unless you had them side by side.