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  1. #1
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    Default Mosler documentation - NS4004

    Does anybody have some "older" Mosler documentation? Specifically form number NS-04004 prior to Mosler terminating production of the 302/402 locks?

    I have a copy from 1996 (see http://www.antique-locks.com/showthr...ghlight=ns4004 for a PDF copy) but it explains that Mosler stopped producing the 302/402 in 1991, so it covers instead the replacement locks produced for Mosler by others.

    I'm interested in seeing an earlier copy that covers the 302/402. For example there were many variations produced and I'm curious as to the varieties and designations, also parts breakdowns.

  2. #2
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    There are the key change and hand change versions of both the Gr 1 and Gr 2 locks. 3 (302) and 4 (402) wheel locks in the Gr 2, not sure if there was a 4 wheel Gr 1.

  3. #3
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    Quote Originally Posted by Doug MacQueen View Post
    There are the key change and hand change versions of both the Gr 1 and Gr 2 locks. 3 (302) and 4 (402) wheel locks in the Gr 2, not sure if there was a 4 wheel Gr 1.
    I was thinking the same, more or less. There should be several ways to categorize safe locks.

    - 3 wheels or 4 wheels; I assumed this was 302/402

    - Hand Change versus Key Change. I assume this is the "K" in some model designations.

    - Group 1 and Group 2. Perhaps the former is the "MR" in models such as MRK302

    - X-Ray-resistant wheels versus ordinary wheels (the latter might be metal or plastic but that's probably a manufacturing choice rather than a model specification).

    Now, that's 16 models. Of course we can omit some, for example x-ray-resistant group 2 doesn't make much sense.

    What's curious is a 1988 training video I just got on eBay that states there were 9 models and the details are spelled out in NS4004. So I'm curious about which ones they made or didn't make, and the model designations. And, as I mentioned, parts/assembly diagrams.

  4. #4
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    Yes the MRK 302 is a Manipulation Resistant Key change 3 wheel Gr 1. The X-ray resistant hand change wheel is by far the most common found and was widely used, even in the Gr 2 locks. There was an oddball model, don't know the model number, that was longer with a piggyback 2 movement timer.

  5. #5

    Default Mosler MR / MRK-302, etc. locks

    I have a number of these locks, of various sorts. I also have earlier documentation on them This is not in electronic format, and I don't have scanning capability. I'll share with whoever is interested, but I'll need a postal mailing address.

  6. #6
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    Feb 2018
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    Country: France

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    Quote Originally Posted by Vaughan Armstrong View Post
    I have a number of these locks, of various sorts. I also have earlier documentation on them This is not in electronic format, and I don't have scanning capability. I'll share with whoever is interested, but I'll need a postal mailing address.
    beautiful men on this forum !

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