[Milsurplus] PL-68 versus PJ-068

[WA5CAB at cs.com]

Jay,

Aside from some made in Japan in the 50's, the plug bodies are the same and 
AFAIK cannot be differentiated.  The plug shells are the same except for what's 
engraved on them, and in some cases how (I've seen some with raised rather 
than engraved and filled lettering).  

DOD re-nomenclatured a lot of stuff post-war without making any other 
changes.  Other examples are DY-96/VRC (same as DM-43-A) and H-23/U (same as, if same 
contractor made them, TS-15-C).  PL-54, PL-354, PL-55, PL-68 and JK-26 became 
PL-054B, PL-054R, PJ-055B, PJ-068 and JJ-026 respectively.  I don't have firm 
dates on when each change occurred but think it was circa 1948 when it 
started.  That's when DOD came into existance.

So what the two different groups of nomenclature do is date the part and the 
part it is on as no earlier than or no later than.  If someone tries to sell 
an item with a PJ-055B on it and claims it is WW-II vintage, he's either wrong 
or it was repaired after the War.  If it is an NOSB item, then it is post-war.

In a message dated 2/12/2007 1:00:06 PM Central Standard Time, 
Jcoward5452 at aol.com writes: 
> So for us not "in the know" what are all the differences? Date or era 
> of manyfacture?
> Jay

Robert Downs - Houston
<http://www.wa5cab.com> (Web Store)
MVPA 9480
<wa5cab at cs.com> (Primary email)
<wa5cab at houston.rr.com> (Backup email)
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