PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31EXJBTMeter,time Totalizing

Reflect-a-Life, Inc Dba Reflect a Life · NSN 6645-00-308-4179 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-308-4179 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-308-4179. Primary manufacturer part number: 31EXJBT.
Features
  • Meter,time Totalizing — FSC 6645
  • Mounting Flange Diameter: 3.500 INCHES NOMINAL IN
  • Electrical Movement Type: SYNCHRONOUS MOTOR
  • Operating Frequency: 60.0 HERTZ NOMINAL
  • Body Depth: 2.000 INCHES NOMINAL IN
  • Current Type: AC
  • Marking Color: BLACK AND RED NUMERALS
  • Terminal Type: STUD
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Meter,time Totalizing, cataloged under National Stock Number 6645-00-308-4179, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Reflect-a-Life, Inc Dba Reflect a Life. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6645-00-308-4179
Primary Part Number31EXJBT
Item NameMeter,time Totalizing
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerReflect-a-Life, Inc Dba Reflect a Life
StatusCANCELLED
Mounting Flange Diameter3.500 INCHES NOMINAL IN
Electrical Movement TypeSYNCHRONOUS MOTOR
Operating Frequency60.0 HERTZ NOMINAL
Body Depth2.000 INCHES NOMINAL IN
Current TypeAC
Marking ColorBLACK AND RED NUMERALS
Terminal TypeSTUD
Unit TypeMOUNTED
Background ColorWHITE
Mounting ConfigurationTHREE 0.150 IN. DIA MTG HOLES ON 1.58 IN. RADIUS SPACED 120 DEG APART IN
Indicator TypeDRUM REGISTER
Body Diameter2.680 INCHES NOMINAL IN
Smallest Increment Indicated0.10
Maximum Measurement9999.90
Movement TypeELECTRICAL
Terminal Quantity2
Reset FeatureNOT PROVIDED
Mounting MethodFLUSH
Mounting TypePANEL
Voltage Rating110.0 VOLTS MINIMUM AND 125.0 VOLTS MAXIMUM
Measurement UnitHOURS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
6645-00-262-7448107X4 INTERCHANGEABLE
Meter,time Totalizing
Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc
6645-01-057-7987 INTERCHANGEABLE
Meter,time Totalizing
Cross-Reference Index
Part NumberManufacturer
31EXJBT PRIMARY Reflect-a-Life, Inc Dba Reflect a Life (USA)
JBTE31-EX PRIMARY Lee Co the J B T Div (USA)
8108458 PRIMARY Us Army Aviation and Missile Command (USA)
Related Parts
6645-00-262-7448INTERCHANGEABLE
METER,TIME TOTALIZING
107X4
6645-01-057-7987INTERCHANGEABLE
METER,TIME TOTALIZING

Frequently Asked Questions

What is NSN 6645-00-308-4179?

NSN 6645-00-308-4179 is a Meter,time Totalizing, manufactured by Reflect-a-Life, Inc Dba Reflect a Life, classified under FSC 6645 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6645-00-308-4179?

NSN 6645-00-308-4179 has 3 cross-referenced part numbers: 31EXJBT (Reflect-a-Life, Inc Dba Reflect a Life), JBTE31-EX (Lee Co the J B T Div), 8108458 (Us Army Aviation and Missile Command).

What NSN replaces 6645-00-308-4179?

There are 2 known substitutes for 6645-00-308-4179: 6645-00-262-7448, 6645-01-057-7987. Verify interchangeability with system specifications before substitution.

What are the specifications of 31EXJBT?

Key specifications for 31EXJBT: Mounting Flange Diameter: 3.500 INCHES NOMINAL IN; Electrical Movement Type: SYNCHRONOUS MOTOR; Operating Frequency: 60.0 HERTZ NOMINAL; Body Depth: 2.000 INCHES NOMINAL IN. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6645-00-308-4179 still in active supply?

NSN 6645-00-308-4179 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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