Technical Manual (TM 5-6115-244-20P) for Pacific Mercury Model PM59-010-1 Generator Set June 1969 FSN 6115-690-8290
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TM 5-6115-244-20P
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This Technical Manual TM 5-6115-244-20P covers the Pacific Mercury Model PM59-010-1 Generator Set, identified under FSN 6115-690-8290, and is dated June 1969. For collectors of U.S. Army technical manuals, military power-generation equipment references, Cold War support-system literature, and dated government publications, this is a strong period document tied to a specialized piece of Army utility and field-support equipment.
Because this is a -20P technical manual, it belongs to the organizational maintenance, repair parts, and special tools side of Army documentation. Manuals in this category were intended to support the identification of assemblies, components, repair parts, and special tools required to keep equipment serviceable at the unit level. That gives this publication strong technical and workshop-oriented value for collectors, researchers, and restorers.
The Pacific Mercury Model PM59-010-1 Generator Set
The Pacific Mercury Model PM59-010-1 Generator Set belongs to the broader family of military power-generation, utility, and field-support equipment. As identified by its nomenclature, it is a generator set, placing it squarely in the support side of Army operations rather than in the category of conventional weapons or combat vehicles.
Equipment in this class supplied dependable electrical power for field sites, maintenance areas, support facilities, communications equipment, shop operations, and other mission-essential systems where commercial power was unavailable or unreliable. In military service, generator sets like this were fundamental to keeping installations and mobile operations running.
For collectors, that makes this manual especially interesting because it documents the technical side of Cold War military support equipment rather than more commonly seen combat hardware. It also has strong crossover appeal for anyone interested in military generators, utility equipment, and U.S. Army field-support systems. The inclusion of FSN 6115-690-8290 adds cataloging value for collectors who prefer manuals with a specific government stock-number reference rather than only general nomenclature.
What This Manual Covers
As an organizational maintenance, repair parts, and special tools technical manual, TM 5-6115-244-20P was intended to support the maintenance and parts-identification functions for the Pacific Mercury Model PM59-010-1 Generator Set.
In practical terms, a manual like this is especially relevant for:
- nomenclature and identification
- repair-parts identification
- assembly and component breakdowns
- special tools listings
- organizational maintenance support
- archival and restoration research use
That makes it valuable not only as a collectible, but also as a practical reference for anyone studying how the Army supported generator and utility equipment during the Cold War period.
Historical Significance
The date June 1969 places this publication in the Cold War period, when the U.S. military maintained extensive technical literature covering not only weapons and vehicles, but also the utility and support equipment required to sustain field operations. Manuals like this reflect a period when Army documentation extended into every part of the logistical chain, including generator sets, maintenance tools, utility systems, and field-support infrastructure.
For collectors and historians, this manual is especially relevant to subjects such as:
- Cold War U.S. Army technical manuals
- military generator sets and field power systems
- Army utility and support equipment
- repair parts and special tools documentation
- dated military technical publications
Because it covers a specialized generator set rather than a more common tactical vehicle or weapon system, it also adds variety to collections that already include standard ordnance or maintenance manuals.
About This Manual
This listing is for Technical Manual TM 5-6115-244-20P for the Pacific Mercury Model PM59-010-1 Generator Set, identified under FSN 6115-690-8290 and dated June 1969.
It is especially well suited for:
- U.S. Army technical manual collections
- Cold War utility and support-equipment displays
- generator and military power-equipment collections
- museum exhibits on Army maintenance and field-support systems
- archive and research libraries focused on U.S. military technical publications
Because manuals were working documents, surviving examples are valued not only for their content, but also for their connection to real military maintenance and support practice.
Why This Manual Matters
Many military manuals focus on the primary weapon, vehicle, or combat platform. This one documents the support side of military readiness, specifically a generator set used to provide dependable electrical power in military environments. That makes it especially useful for collectors who want to preserve the broader technical and logistical picture of Army operations rather than only front-line hardware.
For collectors, it is a solid stand-alone Cold War technical manual with a specialized subject focus. For researchers, it offers a useful reference point for Army generator documentation, parts support, and field power history. For museums, it helps explain the behind-the-scenes systems that supported communications, maintenance, facilities, and operational readiness.
Ideal For
This manual is a strong fit for:
- U.S. Army technical manual collections
- Cold War utility and support-equipment displays
- generator and military power-equipment collections
- museum and archival reference libraries
- collectors of military paperwork and dated technical publications
Approx length 11", Approx width 8", Approx height .25", Approx weight 1lbs.
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