John B. Slocomb wrote:

Nope. The "NAS" number has changed but the same old bolt is still
available. A NAS 147-53 is now called a MS25007-40

The AN- Army Navy specification series started in the early 1940s
NAS-
National Aerospace Standards, started
in 1941
MS- Military standard started around
the 1950s

That conveniently ignores the fact that a 1/4"-28 screw isn't an M6x1.0 screw. There is no metric "internal wrenching bolt" so there's no such bolt on a recently manufactured bicycle (even a pretend bicycle like a Huffy).