PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4L1706Indicator,electrical Tachometer

Caterpillar Inc Div Caterpillar Defense · NSN 6680-00-263-2303 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-263-2303 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-263-2303. Primary manufacturer part number: 4L1706.
Features
  • Indicator,electrical Tachometer — FSC 6680
  • Scale Range: -0.1 TO 3000.0 REVOLUTIONS PER MINUTE SINGLE INDICATOR SINGLE SCALE
  • Contact Quantity: 2
  • Pointer Type: CLOCK-HAND SINGLE POINTER
  • Electrical Connection Quantity: 2
  • Color: WHITE POINTER OVERALL
  • Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S)
  • Contact Type: STUD
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Indicator,electrical Tachometer, cataloged under National Stock Number 6680-00-263-2303, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6680-00-263-2303
Primary Part Number4L1706
Item NameIndicator,electrical Tachometer
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusCANCELLED
Scale Range-0.1 TO 3000.0 REVOLUTIONS PER MINUTE SINGLE INDICATOR SINGLE SCALE
Contact Quantity2
Pointer TypeCLOCK-HAND SINGLE POINTER
Electrical Connection Quantity2
ColorWHITE POINTER OVERALL
Mounting Facility Type and Quantity4 UNTHREADED HOLE(S)
Contact TypeSTUD
Depth1.625 INCHES NOMINAL IN
ColorBLACK BACKGROUND OVERALL
Mounting Stud Diameter0.1695 INCHES NOMINAL IN
Current TypeDC
Width3.040 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-031-187995-6 INTERCHANGEABLE
Washer,special
Cnh Industrial America Llc Dba Cnh America
5310-00-064-3590 INTERCHANGEABLE
Nut,plain,hexagon
5960-00-114-3822 INTERCHANGEABLE
Electron Tube
5305-00-151-3219 INTERCHANGEABLE
Screw,machine
5950-00-230-5026 INTERCHANGEABLE
Coil,radio Frequency
2990-00-466-6150 INTERCHANGEABLE
Muffler,exhaust
5120-00-540-6219671240 INTERCHANGEABLE
Stake,sheet Metalworking
Milwaukee Tool & Equipment Company Incorporated Dba Milwaukee Malleable & Grey Iron Works Div
6620-00-581-5176 INTERCHANGEABLE
Indicator,electrical Tachometer
5960-00-617-9039 INTERCHANGEABLE
Electron Tube
5930-00-655-1508 INTERCHANGEABLE
Switch,toggle
Cross-Reference Index
Part NumberManufacturer
4L1706 Caterpillar Inc Div Caterpillar Defense (USA)
545RT82P Solartron Electronics Inc Weston Instruments Div (USA)
956 Solartron Electronics Inc Weston Instruments Div (USA)
Related Parts
5310-00-031-1879INTERCHANGEABLE
WASHER,SPECIAL
95-6
5310-00-064-3590INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5960-00-114-3822INTERCHANGEABLE
ELECTRON TUBE
5305-00-151-3219INTERCHANGEABLE
SCREW,MACHINE
5950-00-230-5026INTERCHANGEABLE
COIL,RADIO FREQUENCY
2990-00-466-6150INTERCHANGEABLE
MUFFLER,EXHAUST
5120-00-540-6219INTERCHANGEABLE
STAKE,SHEET METALWORKING
671240
6620-00-581-5176INTERCHANGEABLE
INDICATOR,ELECTRICAL TACHOMETER
5960-00-617-9039INTERCHANGEABLE
ELECTRON TUBE
5930-00-655-1508INTERCHANGEABLE
SWITCH,TOGGLE
4910-00-765-6358INTERCHANGEABLE
GRINDING MACHINE,VALVE FACE
956
5975-01-022-0014INTERCHANGEABLE
CHASE NIPPLE,CONDUIT
CN-600

Frequently Asked Questions

What is NSN 6680-00-263-2303?

NSN 6680-00-263-2303 is a Indicator,electrical Tachometer, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 6680 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6680-00-263-2303?

NSN 6680-00-263-2303 has 3 cross-referenced part numbers: 4L1706 (Caterpillar Inc Div Caterpillar Defense), 545RT82P (Solartron Electronics Inc Weston Instruments Div), 956 (Solartron Electronics Inc Weston Instruments Div).

What NSN replaces 6680-00-263-2303?

There are 12 known substitutes for 6680-00-263-2303: 5310-00-031-1879, 5310-00-064-3590, 5960-00-114-3822 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4L1706?

Key specifications for 4L1706: Scale Range: -0.1 TO 3000.0 REVOLUTIONS PER MINUTE SINGLE INDICATOR SINGLE SCALE; Contact Quantity: 2; End Item Identification: 1200 PSI BOILERS; Pointer Type: CLOCK-HAND SINGLE POINTER. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6680-00-263-2303 still in active supply?

NSN 6680-00-263-2303 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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