Description
Technical Manual (TM 9-1240-285-35P) for M114/T199 Telescope Mount May 1960
Technical Manual (TM 9-1240-285-35P) for M114/T199 Telescope Mount – May 1960
Item Overview
This original U.S. Army technical manual provides the field and depot maintenance repair-parts and special-tools list for the M114 Telescope Mount, formerly designated T199. It was issued in May 1960 during the early service period of the M60 main battle tank.
This listing is for the technical manual only. It does not include the M114 mount, optical telescope, tools, tank, or other fire-control equipment.
Manual Contents
The manual covers information such as:
- Field and depot maintenance repair parts
- Major assemblies and smaller components
- Illustrated parts identification
- Official part names and numbers
- Maintenance-level authorization
- Special-tools information
- Numerical parts indexes
- Supply and requisition references
These details are valuable when identifying loose components or studying how the complete mount was assembled.
About the M114/T199 Telescope Mount
The M114 mount supported the M105C articulated telescope. Together, they formed a secondary direct-fire sighting system for the 105-mm Gun, Full-Tracked Combat Tank M60.
The mount used a base housing, adjustable slide, and telescope holder. Boresight controls allowed the optic to move in elevation and deflection. Locking mechanisms held the selected alignment during use.
The complete M114 mount was identified by part number 8574690. Its major components included housing assembly 8574691 and holder assembly 8574694. The mount was later cataloged under NSN 1240-00-676-2176, previously written as FSN 1240-676-2176.
Historical Background
The T199 designation represents the mount’s developmental stage. It became the standardized M114 Telescope Mount as the Army placed the M60 tank and its 105-mm gun system into service.
Published in May 1960, this parts manual belongs to the earliest support program for the M114 mount. It documents how Army shops identified and supplied components before completing field repairs or full depot rebuilds.
The manual offers a direct look at Cold War military logistics and fire-control maintenance. It is also useful for tracing parts that may no longer carry readable markings.
Identification
- Manual number: TM 9-1240-285-35P
- Publication type: Field and Depot Maintenance Repair Parts and Special Tools List
- Equipment: Telescope Mount M114
- Developmental designation: T199
- Publication date: May 1960
- Mount part number: 8574690
- Federal Stock Number: 1240-676-2176
- Compatible telescope: M105C articulated telescope
- Parent system: M60 105-mm gun full-tracked combat tank
Collector and Research Value
This manual is a useful companion to the M114/T199 field and depot maintenance manual. Its illustrated parts information makes it valuable for M60 restoration work, component identification, museum research, and Cold War military-optics collections.
Ideal For
- U.S. Army technical-manual collections
- M60 tank restoration research
- M114/T199 component identification
- Military optics and fire-control displays
- Cold War armored-vehicle collections
- Museum and educational archives
Approx length 8", Approx width 10", Approx height .1", Approx weight .1lbs.
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