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TRW op rod spring?

This is a discussion on TRW op rod spring? within the The M14 forums, part of the M14 M1A Forum category; Regardless is it a NATIONAL MATCH TRW spring??...


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Old May 18th, 2017, 03:16 PM   #16
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Regardless is it a NATIONAL MATCH TRW spring??

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Old May 19th, 2017, 01:37 PM   #17
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There is no such animal as a NM op rod spring. TRW did not manufacture op rod springs. Some people infer that Wolfe springs are NM, but they are actually just non-mil spec springs that work OK.

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Old May 19th, 2017, 01:49 PM   #18
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Quote:
Originally Posted by Ted Brown View Post
There is no such animal as a NM op rod spring. TRW did not manufacture op rod springs. Some people infer that Wolfe springs are NM, but they are actually just non-mil spec springs that work OK.
Ted, I believe he was being facetious, referring to anything being TRW as superior.

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Old May 20th, 2017, 10:57 AM   #19
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I was looking at one of my TRW safeties and it is stamped TRW, below that is stamped HT-B, I have several others in trigger groups and they are basically the same except for being stamped HT-C or IIRC HT-D. What I believe this means is simply HT Heat Treat and the B,C or D stands for the lot code.

If in fact these were made for TRW by a subcontractor, why after production and not during production? You don't find these on TRW built M14s but later as replacement parts.

I'm just throwing this out there, am I completely off with this idea?

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Old May 22nd, 2017, 10:18 AM   #20
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It would seem odd that the HT markings would indicate heat treat batches. The only other places heat teat numbers are found are on major components like the receiver, barrel, and bolt. It wasn't required on the safety. TRW stated that they made only eleven basic components which did not include the safety. Lee's reference to the parts made by TRW does include the safety in a list of 14 components. Since it's contradictory, even in Lee's writings, I'll have to check on this further.

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