PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K19203-D0Meter,time Totalizing

Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc · NSN 6645-00-732-5425 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-732-5425 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-732-5425. Primary manufacturer part number: K19203-D0.
Features
  • Meter,time Totalizing — FSC 6645
  • Current Type: AC
  • Body Width: 0.500 INCHES NOMINAL IN
  • Mounting Flange Width: 0.375 INCHES NOMINAL IN
  • Mounting Configuration: TWO NO. 4-40 THD SIZE MTG HOLES SPACED 0.812 IN. C TO C IN
  • Operating Frequency: 400.0 HERTZ NOMINAL
  • Electrical Movement Type: SYNCHRONOUS MOTOR
  • Marking Color: WHITE NUMERALS
Applications
  • Applications requiring Aluminum or Steel Case construction
General Description

The Meter,time Totalizing, cataloged under National Stock Number 6645-00-732-5425, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 5 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
NSN6645-00-732-5425
Primary Part NumberK19203-D0
Item NameMeter,time Totalizing
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerAi-Tek Instruments Llc Dba Ai-Tek Instruments Llc
StatusCANCELLED
Current TypeAC
Body Width0.500 INCHES NOMINAL IN
Mounting Flange Width0.375 INCHES NOMINAL IN
Mounting ConfigurationTWO NO. 4-40 THD SIZE MTG HOLES SPACED 0.812 IN. C TO C IN
Operating Frequency400.0 HERTZ NOMINAL
Electrical Movement TypeSYNCHRONOUS MOTOR
Marking ColorWHITE NUMERALS
Voltage Rating102.0 VOLTS MINIMUM AND 128.0 VOLTS MAXIMUM
Hermetic ProtectionPROVIDED
Measurement UnitHOURS
Mounting MethodFLUSH
Smallest Increment Indicated1.00
Indicator TypeDRUM REGISTER
Movement TypeELECTRICAL
Flange Height1.062 INCHES NOMINAL IN
Reset FeatureNOT PROVIDED
Unit TypeMOUNTED
Background ColorBLACK
Maximum Measurement9999.00
Body Depth1.075 INCHES NOMINAL IN
MaterialALUMINUM OR STEEL CASE
Terminal TypeWIRE HOOK
Mounting TypePANEL
Body Length0.500 INCHES NOMINAL IN
Terminal Quantity2
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4320-00-127-2707 INTERCHANGEABLE
Link,valve Rod
5935-00-258-3829 INTERCHANGEABLE
Socket,plug-in Electronic Compon
5310-00-527-4494 INTERCHANGEABLE
Nut,plain,hexagon
5910-00-797-4891D29220 INTERCHANGEABLE
Capacitor,fixed,electrolytic
Sprague Electric Co World Hqs
1650-00-834-73961051-3 INTERCHANGEABLE
Parts Kit,linear Actuating Cylin
The Boeing Company Div Defense
5930-00-902-8972266-6287-000 INTERCHANGEABLE
Push Button
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5130-01-129-52011051-3 INTERCHANGEABLE
Valve Assembly
Huck International, Inc. Div Kingston Operations
3456-01-176-691710513 INTERCHANGEABLE
Blade,moveable
Industrial Applications Intl Inc
4820-01-227-249310513 INTERCHANGEABLE
Valve Assembly,manifold
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
6250-01-327-46071-0513 INTERCHANGEABLE
Ballast,lamp
Roconex Corporation
Cross-Reference Index
Part NumberManufacturer
K19203-D0 Vdo Control Systems Inc (USA)
10513 Astronautics Corporation of America (USA)
K19203-D0 PRIMARY Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc (USA)
D19281 Vdo Control Systems Inc (USA)
K19203D0A North American Philips Corp (USA)
K19203D0A Vdo Control Systems Inc (USA)
D19281 Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc (USA)
95C8WA Electrodynamics Inc Div L3harris Electrodynamics Inc (USA)
95C8W Electrodynamics Inc Div L3harris Electrodynamics Inc (USA)
D95C8WA PRIMARY Electrodynamics Inc Div L3harris Electrodynamics Inc (USA)
Related Parts
4320-00-127-2707INTERCHANGEABLE
LINK,VALVE ROD
5935-00-258-3829INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
5310-00-527-4494INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5910-00-797-4891INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
D29220
1650-00-834-7396INTERCHANGEABLE
PARTS KIT,LINEAR ACTUATING CYLIN
1051-3
5930-00-902-8972INTERCHANGEABLE
PUSH BUTTON
266-6287-000
5130-01-129-5201INTERCHANGEABLE
VALVE ASSEMBLY
1051-3
3456-01-176-6917INTERCHANGEABLE
BLADE,MOVEABLE
10513
4820-01-227-2493INTERCHANGEABLE
VALVE ASSEMBLY,MANIFOLD
10513
6250-01-327-4607INTERCHANGEABLE
BALLAST,LAMP
1-0513
6240-01-411-3127INTERCHANGEABLE
LAMP,FLUORESCENT
10513
5120-01-468-8595INTERCHANGEABLE
ROUND REM TOOL
10513

Frequently Asked Questions

What is NSN 6645-00-732-5425?

NSN 6645-00-732-5425 is a Meter,time Totalizing, manufactured by Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc, classified under FSC 6645 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6645-00-732-5425?

NSN 6645-00-732-5425 has 10 cross-referenced part numbers: K19203-D0 (Vdo Control Systems Inc), 10513 (Astronautics Corporation of America), K19203-D0 (Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc), D19281 (Vdo Control Systems Inc), K19203D0A (North American Philips Corp) and 5 more.

What NSN replaces 6645-00-732-5425?

There are 12 known substitutes for 6645-00-732-5425: 4320-00-127-2707, 5935-00-258-3829, 5310-00-527-4494 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of K19203-D0?

Key specifications for K19203-D0: Current Type: AC; Body Width: 0.500 INCHES NOMINAL IN; Mounting Flange Width: 0.375 INCHES NOMINAL IN; Mounting Configuration: TWO NO. 4-40 THD SIZE MTG HOLES SPACED 0.812 IN. C TO C IN. 25 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6645-00-732-5425 still in active supply?

NSN 6645-00-732-5425 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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