Technical Manual (TM 3-4240-280-10) ABC-M24 Aircraft & M25A1 Tank Mask
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Technical Manual (TM 3-4240-280-10) ABC-M24 & M25A1 Tank Mask
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This Technical Manual TM 3-4240-280-10 covers the ABC-M24 Aircraft and the M25/M25A1 Tank Chemical-Biological Mask Accessories and is dated March 1976. For collectors of U.S. Army technical manuals, Chemical Corps material, Cold War protective equipment, and armored or aviation support literature, this is a strong period reference tied to specialized military respiratory protection systems developed for crew use in enclosed fighting and operating compartments.
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 for identification, operation, handling, inspection, and basic service use of the equipment covered. That makes this publication especially useful for collectors, researchers, and restorers who want original service-era documentation rather than general reference material.
The ABC-M24 Aircraft and M25/M25A1 Tank CB Mask
The ABC-M24 Aircraft and M25/M25A1 Tank CB Mask belong to the broader family of U.S. military crew protective masks developed for use in aircraft and armored vehicles. Unlike standard field masks intended for general ground use, these systems were associated with the specialized needs of personnel operating in confined crew stations where integration with vehicle or aircraft operations mattered.
The ABC-M24 Aircraft CB Mask reflects the aviation side of that requirement, while the M25/M25A1 Tank CB Mask belongs to the armored-vehicle and tank-crew side of Army protective equipment. In both cases, these masks represent the Cold War military effort to provide crew-specific protection in environments where chemical or biological hazards were a concern.
For collectors, that makes this manual especially interesting because it documents the technical side of specialized crew protection rather than more commonly seen general-issue field masks. It is a useful example of how the Army adapted respiratory protection to specific combat and support roles.
What This Manual Covers
As a -10 technical manual, TM 3-4240-280-10 would have been intended to support the official Army use of the ABC-M24 Aircraft CB Mask and M25/M25A1 Tank CB Mask.
In practical terms, a manual like this is especially relevant for:
- nomenclature and identification
- operator-level procedures
- fitting, handling, and use guidance
- inspection and care
- service-use reference
- archival and restoration research
That makes it useful not only as a collectible, but also as a practical reference for anyone studying how the Army documented specialized crew protective masks in the mid-1970s.
Historical Significance
The date March 1976 places this publication in the later Cold War period, when the U.S. military maintained extensive technical literature covering chemical-biological defense, protective masks, filtration, and support systems for specialized crews and vehicle operators. Manuals like this reflect a period when Army documentation extended beyond standard infantry equipment to include aircraft and tank-specific protective gear designed for hazardous operating environments.
For collectors and historians, this manual is especially relevant to subjects such as:
- Cold War U.S. Army technical manuals
- Chemical Corps and protective equipment
- aircraft and tank crew respiratory protection
- specialized CB protective masks
- dated military technical publications
Because it covers both an aircraft mask and a tank mask in one manual, it also adds variety and crossover appeal to collections centered on military aviation, armored vehicles, or protective equipment.
About This Manual
This listing is for Technical Manual TM 3-4240-280-10 for the ABC-M24 Aircraft CB Mask and M25/M25A1 Tank CB Mask, dated March 1976.
It is especially well suited for:
- U.S. Army technical manual collections
- Chemical Corps and protective-equipment displays
- armored vehicle and aircraft crew-equipment collections
- museum exhibits on military 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 issue, training, and support practice.
Why This Manual Matters
Many military manuals focus on weapons, vehicles, or general field gear. This one documents the support side of military readiness, specifically specialized respiratory protection for aircraft and tank crews. That makes it especially useful for collectors who want to preserve the broader technical and logistical picture of Army Cold War preparedness 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 crew-mask documentation and protective-equipment history. For museums, it helps explain the behind-the-scenes systems that supported personnel operating in enclosed and potentially hazardous crew environments.
Ideal For
This manual is a strong fit for:
- U.S. Army technical manual collections
- Cold War Chemical Corps displays
- aircraft and tank crew-equipment collections
- museum and archival reference libraries
- collectors of military paperwork and dated technical publications
Approx length 6", Approx width 4", Approx height .2", Approx weight .2lbs.
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