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PL259 Thread standard
"HRBE" wrote in message ... I assumed wrongly that there was an International standard with regard to the PL259/SO239. Naturally when a known part number is advertised, one would expect that the normal 5/8" x 24 threads per inch standard (UNEF) would be followed. The original PL-259 was a World War 2 US military JANAP standard. It had specifications for all the critical fit parts of a PL-259 connector. Eventually the JANAP standard morphed into a US Mil-Spec Standard. The current standard hasn't changed much since WW2. A metric thread does not meet the standard. If somebody says its a PL-259; they should meet that standard or say it is similar but NOT compatible. Too many manufacturers have gotten sloppy in their QC. |
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