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Technical Data Sheet
PartsTable / MRO / 21903
21903 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The STARTER,ENGINE,ELECTRICAL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1090 OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, load_rating: 9.500 POUNDS MINIMUM AND 10.500 POUNDS MAXIMUM LBS, inside_diameter: 0.229 INCHES NOMINAL IN, special_features: QUICK CHANGE, style_designator: CYLINDRICAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 1650-00-083-4039, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO→ MRO_GENERAL→ 21903
NSN: 1650-00-083-4039
FSC: 1650
CAGE: 79294 — E-SYSTEMS INC MONTEK DIV FLUID CONTROLS OPNS (USA)
SPECIFICATIONS
materialSTEEL COMP 1090 OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
load_rating9.500 POUNDS MINIMUM AND 10.500 POUNDS MAXIMUM LBS
coil_quantity5
inside_diameter0.229 INCHES NOMINAL IN
special_featuresQUICK CHANGE
style_designatorCYLINDRICAL
surface_treatmentCADMIUM OVERALL
spring_solid_length0.375 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND OR LEFT-HAND
spring_length_under_load0.313 INCHES NOMINAL IN
spring_free_outside_diameter0.313 INCHES NOMINAL IN
NSN1650-00-083-4039
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available STARTER,ENGINE,ELECTRICAL TITLE COMPONENT PN 21903 MFR STARTER,ENGINE,ELECTRI
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
21903Interchangeable
interchangeable cross-reference
interchangeable
21903-1Interchangeable
interchangeable cross-reference
interchangeable
1903Interchangeable
interchangeable cross-reference
interchangeable
14527Interchangeable
interchangeable cross-reference
interchangeable
56351Interchangeable
interchangeable cross-reference
interchangeable
4111646Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21903?
21903 is a STARTER,ENGINE,ELECTRICAL. It is classified as a MRO (MRO_GENERAL).
What parts can replace 21903?
There are 6 known substitutes for 21903: 21903, 21903-1, 1903 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21903?
21903 is cataloged in the Federal Logistics Information System (FLIS) under NSN 1650-00-083-4039. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026