PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A1022608Meter,time Totalizing

L3harris Technologies, Inc. · NSN 6645-00-171-9251 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-171-9251 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-171-9251. Primary manufacturer part number: A1022608.
Features
  • Meter,time Totalizing — FSC 6645
  • Material: PLASTIC CASE
  • Indicator Type: DRUM REGISTER
  • Marking Color: WHITE NUMERALS
  • Hermetic Protection: NOT PROVIDED
  • Measurement Unit: HOURS
  • Reset Feature: NOT PROVIDED
  • Maximum Measurement: 9999.90
Applications
  • Applications requiring Plastic Case construction
General Description

The Meter,time Totalizing, cataloged under National Stock Number 6645-00-171-9251, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is L3harris Technologies, Inc.. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 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
NSN6645-00-171-9251
Primary Part NumberA1022608
Item NameMeter,time Totalizing
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerL3harris Technologies, Inc.
StatusCANCELLED
MaterialPLASTIC CASE
Indicator TypeDRUM REGISTER
Marking ColorWHITE NUMERALS
Hermetic ProtectionNOT PROVIDED
Measurement UnitHOURS
Reset FeatureNOT PROVIDED
Maximum Measurement9999.90
Smallest Increment Indicated0.10
Operating Frequency60.0 HERTZ NOMINAL
Hermetic ProtectionNOT PROVIDED
Voltage Rating115.0 VOLTS NOMINAL
Background ColorBLACK
Body Depth2.840 INCHES NOMINAL IN
Mounting Flange Diameter3.500 INCHES NOMINAL IN
Mounting ConfigurationTHREE0.150 IN. DIA MTG HOLES SPACED 120 DEG APART ON 1.58 IN. RADIUS IN
Mounting MethodFLUSH
Electrical Movement TypeSYNCHRONOUS MOTOR
Measurement UnitHOURS
Unit TypeMOUNTED
Movement TypeELECTRICAL
Operating Frequency60.0 HERTZ NOMINAL
Body Diameter2.550 INCHES NOMINAL IN
Movement TypeELECTRICAL
Body Depth2.840 INCHES NOMINAL IN
Background ColorBLACK
Smallest Increment Indicated0.10
Body Diameter2.550 INCHES NOMINAL IN
Terminal Quantity2
Mounting TypePANEL
Mounting Flange Diameter3.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
6645-00-851-6654610034 INTERCHANGEABLE
Meter,time Totalizing
Bae Systems Information and Electronic Systems Integration Inc.
5950-01-093-7776 INTERCHANGEABLE
Transformer
Cross-Reference Index
Part NumberManufacturer
A1022608 PRIMARY L3harris Technologies, Inc. (USA)
A1022608ISSUEA Itt Industries Inc Itt Aerospace Communications Div East (USA)
788C421H02 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
M5284 Edo (USA)
HM3ET Jewell Instruments Llc (USA)
788C421H02 Westinghouse Electric Corp (USA)
632EA08S Cramer Co Division of Chestnut Group Inc (USA)
631EA08S Cramer Co Division of Chestnut Group Inc (USA)
Related Parts
6645-00-851-6654INTERCHANGEABLE
METER,TIME TOTALIZING
610034
5950-01-093-7776INTERCHANGEABLE
TRANSFORMER

Frequently Asked Questions

What is NSN 6645-00-171-9251?

NSN 6645-00-171-9251 is a Meter,time Totalizing, manufactured by L3harris Technologies, Inc., classified under FSC 6645 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6645-00-171-9251?

NSN 6645-00-171-9251 has 8 cross-referenced part numbers: A1022608 (L3harris Technologies, Inc.), A1022608ISSUEA (Itt Industries Inc Itt Aerospace Communications Div East), 788C421H02 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), M5284 (Edo), HM3ET (Jewell Instruments Llc) and 3 more.

What NSN replaces 6645-00-171-9251?

There are 2 known substitutes for 6645-00-171-9251: 6645-00-851-6654, 5950-01-093-7776. Verify interchangeability with system specifications before substitution.

What are the specifications of A1022608?

Key specifications for A1022608: Material: PLASTIC CASE; Indicator Type: DRUM REGISTER; Marking Color: WHITE NUMERALS; Hermetic Protection: NOT PROVIDED. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6645-00-171-9251 still in active supply?

NSN 6645-00-171-9251 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.
PartsTable Design LLC · partstable.com