PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4L1431Indicator,electrical Tachometer

Caterpillar Inc Div Caterpillar Defense · NSN 6620-00-006-1915 · FSC 6620 · No Item Name Available
Verified by PartsTable
NSN 6620-00-006-1915 — this item is cataloged by the U.S. Government under National Stock Number 6620-00-006-1915. Primary manufacturer part number: 4L1431.
Features
  • Indicator,electrical Tachometer — FSC 6620
  • Color: BLACK BACKGROUND OVERALL
  • Current Type: DC
  • Mounting Stud Diameter: 0.150 INCHES NOMINAL IN
  • Pointer Type: CLOCK-HAND SINGLE POINTER
  • Depth: 2.280 INCHES NOMINAL IN
  • Mounting Facility Type and Quantity: 3 PANEL
  • 2 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Indicator,electrical Tachometer, cataloged under National Stock Number 6620-00-006-1915, is classified within Federal Supply Class 6620 (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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6620-00-006-1915
Primary Part Number4L1431
Item NameIndicator,electrical Tachometer
FSC / FSG6620 / 66 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
ColorBLACK BACKGROUND OVERALL
Current TypeDC
Mounting Stud Diameter0.150 INCHES NOMINAL IN
Pointer TypeCLOCK-HAND SINGLE POINTER
Depth2.280 INCHES NOMINAL IN
Mounting Facility Type and Quantity3 PANEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5133-00-228-1373 INTERCHANGEABLE
Drill,twist
6525-00-604-000029401 INTERCHANGEABLE
Illuminator,x-Ray Film
Wolf X-Ray, Corporation
1650-01-031-903829401 INTERCHANGEABLE
Piston Drive Assembly Rotodome
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
4720-01-184-683529401 INTERCHANGEABLE
Hose Assembly,nonmetallic
Eaglepicher Corp
5330-01-233-7801 INTERCHANGEABLE
Gasket
5930-01-244-53082940-1 INTERCHANGEABLE
Switch,push
Janco Corporation Dba Janco Corp Div Mason Controls
Cross-Reference Index
Part NumberManufacturer
4L1431 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
2-940-1 Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc (USA)
Related Parts
5133-00-228-1373INTERCHANGEABLE
DRILL,TWIST
6525-00-604-0000INTERCHANGEABLE
ILLUMINATOR,X-RAY FILM
29401
1650-01-031-9038INTERCHANGEABLE
PISTON DRIVE ASSEMBLY ROTODOME
29401
4720-01-184-6835INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
29401
5330-01-233-7801INTERCHANGEABLE
GASKET
5930-01-244-5308INTERCHANGEABLE
SWITCH,PUSH
2940-1

Frequently Asked Questions

What is NSN 6620-00-006-1915?

NSN 6620-00-006-1915 is a Indicator,electrical Tachometer, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 6620 (No Item Name Available). Status: active.

What are the part numbers for NSN 6620-00-006-1915?

NSN 6620-00-006-1915 has 2 cross-referenced part numbers: 4L1431 (Caterpillar Inc Div Caterpillar Defense), 2-940-1 (Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc).

What NSN replaces 6620-00-006-1915?

There are 6 known substitutes for 6620-00-006-1915: 5133-00-228-1373, 6525-00-604-0000, 1650-01-031-9038 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4L1431?

Key specifications for 4L1431: Color: BLACK BACKGROUND OVERALL; Current Type: DC; Mounting Stud Diameter: 0.150 INCHES NOMINAL IN; Pointer Type: CLOCK-HAND SINGLE POINTER. 6 total characteristics are documented in the Federal Logistics Information System.

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