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TM 3-1320-242-10 for 155mm, M687, GB2 Projectile (NSN 1320-00-431-6249) Technical Manual Dated: 1987
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This TM 3-1320-242-10 for 155mm, M687, GB2 Projectile (NSN 1320-00-431-6249) Technical Manual Dated: 1987 covers the 155mm M687 GB2 Projectile, identified under NSN 1320-00-431-6249. For collectors of U.S. Army technical manuals, Cold War ordnance documentation, Chemical Corps material, and artillery-related military paper, this is a highly specialized reference tied to one of the more uncommon late-Cold War U.S. projectile systems.
Because this is a -10 technical manual, it belongs to the operator-level side of Army documentation. In practical terms, manuals in this category were intended to provide official guidance on identification, general operation, handling, inspection, and service-level use of the item covered. That makes this publication especially important for collectors and researchers who want original military documentation tied to a specific projectile designation rather than general background material.
The 155mm M687 Projectile
The M687 is part of the U.S. Army’s late-Cold War 155mm artillery projectile family and is historically associated with the Army’s binary chemical munitions program. For historians and collectors, that makes it a significant document within the broader history of U.S. artillery development, Cold War weapons policy, and Chemical Corps-related military documentation.
Because the title identifies the projectile specifically as M687, GB2, this manual is especially useful for those interested in exact nomenclature, military cataloging, and the official Army documentation that accompanied highly specialized munitions systems. It is the type of manual that adds depth to a collection by documenting not just a caliber or weapon family, but a very specific end item with its own NSN and service-era manual designation.
What This Manual Covers
As an operator-level technical manual, TM 3-1320-242-10 would have been intended to support the official Army use and reference framework for the 155mm M687 GB2 projectile.
In practical terms, a manual like this is especially relevant for:
That makes it valuable not only as a collectible, but also as a technical reference for anyone studying how the Army documented specialized projectile systems during the 1980s.
Historical Significance
The date 1987 places this publication in the late Cold War period, when the U.S. military was still producing detailed technical documentation for specialized artillery and chemical-related systems. Manuals like this reflect the formal Army approach to cataloging, supporting, and controlling highly specific ordnance items through standardized technical literature.
For collectors and historians, this manual is especially relevant to subjects such as:
Because it covers a very specific projectile designation, it also stands out from more general artillery manuals and adds variety to collections focused on unusual or hard-to-find Army documentation.
About This Manual
This listing is for TM 3-1320-242-10 for 155mm, M687, GB2 Projectile (NSN 1320-00-431-6249) Technical Manual Dated: 1987.
This listing is for the manual only, not the projectile or any associated hardware.
It is especially well suited for:
Because manuals were working documents, surviving examples are valued not only for their content, but also for their connection to real military inventory control, technical support, and service-era documentation practice.
Why This Manual Matters
Many military manuals cover common weapons, vehicles, or field equipment. This one is different because it documents a very specific and uncommon 155mm projectile designation within official Army nomenclature. That gives it strong value for collectors who want more than general artillery literature and for researchers interested in the exact documentary trail behind late-Cold War U.S. munitions.
For collectors, it is a strong stand-alone technical manual with clear historical relevance. For researchers, it provides specific nomenclature, date, and NSN-linked documentation. For museums, it helps illustrate the paperwork and technical-control side of specialized Army ordnance systems.
Ideal For
This manual is a strong fit for:
Approx length 11", Approx width 8", Approx height .2", Approx weight .2lbs.
Pictures are stock images of our TM 3-1320-242-10 for 155mm, M687, GB2 Projectile (NSN 1320-00-431-6249) Technical Manual Dated: 1987. Unless otherwise noted, you will not be receiving the exact item shown in the pictures. The pictures are representative of the item's general condition. The item you receive might be slightly better, or worse, condition than was shown in the pictures.
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