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3939303 — MOTOR,ENGINE STARTER,ELECTRICAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

3939303: MOTOR,ENGINE STARTER,ELECTRICAL.

MOTOR,ENGINE STARTER,ELECTRICAL. Key specifications include overall_width: 8.250 INCHES IN, overall_height: 6.500 INCHES IN, overall_length: 21.000 INCHES IN, part_name_assigned_by_controlling_agency: MOTOR, STARTING. This part is cataloged in the U.S.

Government catalog under NSN 2920-01-508-8071, 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
3939303
NSN: 2920-01-508-8071
FSC: 2920 — Engine Electrical System Components, Nonaircraft
CAGE: 0B8S3 — CUMMINS INC (USA)
SPECIFICATIONS
overall_width8.250 INCHES IN
overall_height6.500 INCHES IN
overall_length21.000 INCHES IN
part_name_assigned_by_controlling_agencyMOTOR, STARTING
NSN2920-01-508-8071
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MOTOR,ENGINE STARTER,ELECTRICAL TITLE COMPONENT PN 3939303 MFR MOTOR,ENGINE STARTER,E
TECHNICAL CHARACTERISTICS
OVERALL LENGTH21.000 INCHES IN
OVERALL WIDTH8.250 INCHES IN
OVERALL HEIGHT6.500 INCHES IN
PART NAME ASSIGNED BY CONTROLLING AGENCYMOTOR, STARTING
OTHER ITEMS IN FSC 2920 — Engine Electrical System Components, Nonaircraft
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2920-00-003-5173 2920-00-005-1596 2920-00-035-6718 2920-00-158-2674 2920-00-255-4938 2920-00-424-3259
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3939303?
3939303 is a MOTOR,ENGINE STARTER,ELECTRICAL.
What is the NSN for 3939303?
3939303 is cataloged in the U.S. Government catalog under NSN 2920-01-508-8071. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.