Description
Technical Manual Change 1 (TM 9-1240-269-34) for M34 Tank Periscope October 1966 FSN 1240-980-9290
This official Technical Manual Change 1 updates TM 9-1240-269-34 for the M34 Tank Periscope and is dated October 1966. It applies to the base technical manual issued on April 24, 1964 for the periscope identified by FSN 1240-980-9290.
Change 1 is an update notice intended for use with the original TM 9-1240-269-34. It is not the complete April 1964 base manual.
Historical Significance
The M34 was a daylight optical instrument used at the tank commander's station. Installed in the commander's cupola, it combined a wide observation window with magnified binocular optics so the commander could observe and sight while remaining under armor protection.
On M60A1-family vehicles, the commander's station could use the daylight M34 or the infrared-capable M36. Change 1 reflects the Army's continuing maintenance of the technical record for this commander's sighting equipment during the 1960s.
What This Manual Covers
Change 1 provides the October 1966 updates issued for TM 9-1240-269-34. Its scope is limited to revisions made to the direct and general support maintenance publication for the M34 Tank Periscope; it does not reproduce the complete base manual.
The documented M34 is an adjustable commander's optical instrument with a unity-power observation window, binocular viewing system, focusing and interpupillary controls, and elevation and deflection boresight adjustments.
Key Features
- Publication type: official Technical Manual Change 1
- Publication number: TM 9-1240-269-34
- Documented equipment: M34 Tank Periscope
- Change date: October 1966
- Base manual date: April 24, 1964
- Federal Stock Number: 1240-980-9290
- Format relationship: update notice for use with the base manual
Why This Manual Matters
Official change notices show how the Army revised technical guidance after a manual entered service. This Change 1 notice documents the October 1966 revision point for the M34 periscope manual and helps preserve the publication's correct update history.
Its value is strongest for collections and research files that already contain TM 9-1240-269-34 or that document M34 and M60A1-family fire-control equipment.
About This Manual
This item is the October 1966 Change 1 notice for TM 9-1240-269-34, covering the M34 Tank Periscope under FSN 1240-980-9290. The associated base manual was issued on April 24, 1964 and is a separate publication.
Ideal For
This manual is a strong fit for:
- Collectors completing a TM 9-1240-269-34 reference set
- M60A1 tank historians and restoration researchers
- Military-optics and fire-control collectors
- Researchers studying Army manual revision history
Approx length 8", Approx width 10", Approx height .1", Approx weight .1lbs.
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