PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

717228-1Meter,time Totalizing

Raytheon Company Div Rmd Strategic · NSN 6645-00-851-6654 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-851-6654 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-851-6654. Primary manufacturer part number: 717228-1.
Features
  • Meter,time Totalizing — FSC 6645
  • Terminal Quantity: 2
  • Hermetic Protection: PROVIDED
  • Background Color: BLACK ON HR WHEELS,WHITE ON TENTHS WHEEL
  • Mounting Flange Diameter: 3.500 INCHES NOMINAL IN
  • Smallest Increment Indicated: 0.10
  • Measurement Unit: HOURS
  • Voltage Rating: 115.0 VOLTS NOMINAL
Applications
  • Applications requiring Aluminum or Steel Case construction
General Description

The Meter,time Totalizing, cataloged under National Stock Number 6645-00-851-6654, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Raytheon Company Div Rmd Strategic. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 18 commercial cross-references from 13 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6645-00-851-6654
Primary Part Number717228-1
Item NameMeter,time Totalizing
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerRaytheon Company Div Rmd Strategic
StatusCANCELLED
Terminal Quantity2
Hermetic ProtectionPROVIDED
Background ColorBLACK ON HR WHEELS,WHITE ON TENTHS WHEEL
Mounting Flange Diameter3.500 INCHES NOMINAL IN
Smallest Increment Indicated0.10
Measurement UnitHOURS
Voltage Rating115.0 VOLTS NOMINAL
Reset FeatureNOT PROVIDED
Indicator TypeDRUM REGISTER
Unit TypeMOUNTED
Marking ColorWHITE NUMERALS ON HR WHEELS RED NUMERALS ON TENTHS WHEEL
Electrical Movement TypeSYNCHRONOUS MOTOR
Movement TypeELECTRICAL
Operating Frequency60.0 HERTZ NOMINAL
Body Depth2.843 INCHES NOMINAL IN
Mounting ConfigurationTHREE 0.150 IN. DIA MTG HOLES ON 1.580 IN. RADIUS SPACED 120 DEG APART IN
Mounting MethodFLUSH
MaterialALUMINUM OR STEEL CASE
Maximum Measurement9999.90
Current TypeAC
Terminal TypeSOLDER LUG
Mounting TypePANEL
Body Diameter2.550 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
6240-00-155-7815 INTERCHANGEABLE
Lamp,incandescent
6645-00-171-9251788C421H02 INTERCHANGEABLE
Meter,time Totalizing
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5961-01-034-2710VE48 INTERCHANGEABLE
Rectifier,semiconductor Device,u
Teledyne Micropac, Inc.
5306-01-300-6363 INTERCHANGEABLE
Bolt,shoulder
4820-01-564-870861-0034 INTERCHANGEABLE
Valve,globe
Sea-Tech Systems, Inc. Dba Sea Tech Systems
Cross-Reference Index
Part NumberManufacturer
634EA08S Cramer Co Division of Chestnut Group Inc (USA)
717228-1 PRIMARY Raytheon Company Div Rmd Strategic (USA)
HM3ET Marion Div of Tecumseh Products Co (USA)
KH12503P1 North American Philips Corp (USA)
HD654-115V60HZ9999-9HR De Jur-Amsco Corp (USA)
610034 PRIMARY Bae Systems Information and Electronic Systems Integration Inc. (USA)
M7479497-2 General Electric Co Lamp Division of Consumer Products Group (USA)
HD654-60CPS Ideal Precision Meter Co Dba Ideal Precision Meter Co (USA)
409999-0000 Jewell Instruments Llc (USA)
7722495P1 Lockheed Martin Corporation Div Rms (USA)
HD654-60N PRIMARY Ideal Precision Meter Co Dba Ideal Precision Meter Co (USA)
2291507-1 Bendix Corp the (USA)
D12551P4 Vdo Control Systems Inc (USA)
G300053-1 L3harris Technologies, Inc Div Space & Airborne Systems (USA)
KH12503P1 Vdo Control Systems Inc (USA)
291507-1 Bendix Corp the (USA)
HM3ET PRIMARY Jewell Instruments Llc (USA)
HM3ET0-9999-9H Jewell Instruments Llc (USA)
Related Parts
6240-00-155-7815INTERCHANGEABLE
LAMP,INCANDESCENT
6645-00-171-9251INTERCHANGEABLE
METER,TIME TOTALIZING
788C421H02
5961-01-034-2710INTERCHANGEABLE
RECTIFIER,SEMICONDUCTOR DEVICE,U
VE48
5306-01-300-6363INTERCHANGEABLE
BOLT,SHOULDER
4820-01-564-8708INTERCHANGEABLE
VALVE,GLOBE
61-0034

Frequently Asked Questions

What is NSN 6645-00-851-6654?

NSN 6645-00-851-6654 is a Meter,time Totalizing, manufactured by Raytheon Company Div Rmd Strategic, classified under FSC 6645 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6645-00-851-6654?

NSN 6645-00-851-6654 has 18 cross-referenced part numbers: 634EA08S (Cramer Co Division of Chestnut Group Inc), 717228-1 (Raytheon Company Div Rmd Strategic), HM3ET (Marion Div of Tecumseh Products Co), KH12503P1 (North American Philips Corp), HD654-115V60HZ9999-9HR (De Jur-Amsco Corp) and 13 more.

What NSN replaces 6645-00-851-6654?

There are 5 known substitutes for 6645-00-851-6654: 6240-00-155-7815, 6645-00-171-9251, 5961-01-034-2710 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 717228-1?

Key specifications for 717228-1: Terminal Quantity: 2; Hermetic Protection: PROVIDED; Background Color: BLACK ON HR WHEELS,WHITE ON TENTHS WHEEL; Mounting Flange Diameter: 3.500 INCHES NOMINAL IN. 23 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6645-00-851-6654 still in active supply?

NSN 6645-00-851-6654 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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