Mosler 302 lock from ebay or some place so you can actually see what you are doing. You are gonna need a new lock when you get done anyway. The spindle on this safe can also be punched knocking the wheel pack and cover right into the fucking drawer. That will trip a relocker, which is the lock makers way of saying 'fuck you asshole'.

Try your numbers 2550 25 or 50 2550 I have a Mosler safe to that has a seat in side from the post office I can get into the safe that's in side but I forgot my combination to the outside and can't find anybody to help me to open it.
Also on the X07 locks if you have access to the back you can reset with the serial number of the lock and the chane pin key. As for the haning folders, yes there are sheet metal adapters that fit the top of the drawers and are bent in such a way the catch the hanging file hooks.

GSA Global Supply provides full-service acquisition management support to help you acquire Approved Security Containers that conform to federal specifications and standards. These containers are for the storage of:

Classified documents;
Components;
Equipment;
Funds;
Materials;
Valuables; and
Weapons.

Mosler Safe Serial Number Lookup - Caqm.swisslaboratory.it

GSA Global Supply has published its 2020 brochure highlighting various forms of Security Containers (safes, vaults, etc.) for military and civilian customers worldwide. See more than 200 choices in various colors and lock formats (single or multiple) in the brochure.

Mosler Safe Serial Number Location Lookup

Effective October 1, 2012, classified national security information cannot be stored in non-GSA approved security containers. See 32 CFR, Part 2001.43(b), “Requirements for physical protection” for more information. Any classified material stored in non-GSA approved security containers should be moved immediately. All GSA-approved containers must have a GSA approval label, or a GSA recertification label on the front of the equipment in order to store classified National Security Information (NSI) or weapons.

Mosler Safe Serial Number Location Guide

The Information Security Oversight Office (ISOO) issued a notice requiring federal agencies to purchase GSA Approved containers using National Stock Numbers through GSA Global Supply. Please see Procurement of Security Equipment, (ISOO Notice 2014-02 [pdf]) and Additional Guidance on Standards for Security Equipment (ISSO 2012-04 [pdf]) for more information. These notices are intended for a wide federal audience, to ensure consistency in the protection of classified material.

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