Description
Technical Manual (TM 9-1240-274-35P) for M117/T177 Panoramic Telescope December 1962 FSN 1240-864-2930
This Technical Manual TM 9-1240-274-35P covers repair-parts and special-tools information for the M117/T177 Panoramic Telescope, FSN 1240-864-2930, and is dated December 1962.
The M117 was an artillery fire-control optic used with the M145/T208 Telescope Mount. This parts publication supports component identification and supply research for the telescope's maintenance system.
Historical Significance
The M117 panoramic telescope formed part of the fire-control equipment developed for the M108 105 mm and M109 155 mm self-propelled howitzers. Mounted on the M145 telescope mount, it supplied the azimuth measurements used to lay the weapon for indirect fire.
Issued in December 1962, TM 9-1240-274-35P reflects the Army's early logistics support for the M117/T177. It predates the January 1963 field-maintenance manual and provides the parts-reference side of the publication set.
M117 Parts Support within the M108/M109 Fire-Control System
The M117 was installed at the gunner's position on the M145/T208 Telescope Mount. The mount provided an adjustable base while the panoramic telescope supplied azimuth information for indirect-fire laying.
A dedicated parts publication supported the identification of service components and applicable special tools for the optical instrument without replacing the maintenance instructions for the telescope, mount, or complete howitzer.
What This Manual Covers
TM 9-1240-274-35P is the repair-parts and special-tools publication for the M117/T177 Panoramic Telescope. It supports maintenance and supply personnel in researching the components associated with the telescope.
The manual concerns the M117/T177 optical instrument rather than operation of the M108 or M109 vehicle. The separate TM 9-1240-274-34 provides the field-maintenance instructions for the telescope.
Key Features
- Publication: TM 9-1240-274-35P
- Equipment: M117/T177 Panoramic Telescope
- Federal Stock Number: 1240-864-2930
- Publication date: December 1962
- Publication type: Repair-parts and special-tools reference
- Associated mount: M145/T208 Telescope Mount
- Documented platform context: M108 105 mm and M109 155 mm self-propelled howitzers
- Issuing authority: Department of the Army
Why This Manual Matters
Parts manuals preserve component and supply information that may not appear in broader vehicle publications. This manual provides a focused reference for the M117/T177 at the assembly and service-parts level.
It is useful for technical libraries centered on M108 or M109 artillery, panoramic telescopes, indirect-fire optics, and U.S. Army maintenance-support documentation.
About This Manual
This Department of the Army publication is TM 9-1240-274-35P, dated December 1962. It documents repair-parts support for the M117/T177 Panoramic Telescope under FSN 1240-864-2930, later formatted as NSN 1240-00-864-2930.
This early parts publication is distinct from TM 9-1240-274-34, the January 1963 field-maintenance manual, and from the later 1970 edition issued under the same 35P publication number.
Ideal For
This manual is a strong fit for:
- Military technical-manual collectors
- M108 and M109 restoration researchers
- Self-propelled artillery historians
- Fire-control and optical-system specialists
- Maintenance and supply-reference collections
Approx length 8", Approx width 10", Approx height .2", Approx weight .2lbs.
Pictures are stock images of our inventory. 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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