Description
Technical Manual (TM 9-1240-258-35P) for M17C Range Finder June 1960 NSN 1240-00-676-2173
This Technical Manual TM 9-1240-258-35P is a field and depot maintenance repair-parts and special-tools publication for the M17C Range Finder and is dated June 1960.
The manual was prepared as a parts-identification and maintenance-support reference for this optical fire-control instrument. Its 35P scope is focused on repair parts and special tools rather than operator instructions.
Historical Significance
The M17C was a commander's optical coincidence range finder used in the fire-control system of the U.S. Army's 105 mm Gun Tank M60. The operator brought two target images into alignment, allowing the instrument to determine target distance for the tank's fire-control process.
Published during the early period of M60 service, this manual documents the supply and maintenance structure that supported the tank's optical fire-control equipment.
The M17C and the M60 Fire-Control System
The M17C Range Finder gave the tank commander an optical means of measuring range to a target. Its range information supported the settings and calculations used to lay the M60's main gun.
TM 9-1240-258-35P supports that equipment relationship by identifying the repair parts and special tools assigned to field and depot maintenance of the M17C.
What This Manual Covers
TM 9-1240-258-35P provides the repair-parts and special-tools reference for field and depot maintenance of the M17C Range Finder. It helps maintenance personnel identify the support items associated with the range finder without replacing the separate maintenance-instruction manual.
- Field and depot maintenance repair-parts information
- Special-tools reference for M17C support work
- Equipment-specific identification for the M17C Range Finder
- Period support documentation for the M60 tank's optical fire-control system
Key Features
- Publication number: TM 9-1240-258-35P
- Publication date: June 1960
- Equipment: M17C Range Finder
- Range finder NSN: 1240-00-676-2173
- Maintenance scope: field and depot repair parts and special tools
- Issuing authority: U.S. Department of the Army
Why This Manual Matters
This manual is a focused companion to the M17C maintenance literature. It preserves the parts-support side of the system and can help researchers understand how the Army organized higher-level maintenance for early M60 fire-control equipment.
It also adds a specific June 1960 publication to a technical library centered on U.S. tank optics, range finding, or the M60 family.
About This Manual
This U.S. Army Technical Manual is numbered TM 9-1240-258-35P and dated June 1960. It covers field and depot maintenance repair parts and special tools for the M17C Range Finder, identified by NSN 1240-00-676-2173.
Ideal For
This manual is a strong fit for:
- U.S. military technical-manual collectors
- M60 tank restoration researchers
- Military museums and reference libraries
- Optical fire-control equipment historians
- Repair-parts and maintenance-publication collections
Approx length 8", Approx width 10", Approx height .4", Approx weight 1lbs.
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