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5L1621 — PUMP,ENGINE PRIMING,HAND DRIVEN

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

5L1621: PUMP,ENGINE PRIMING,HAND DRIVEN.

PUMP,ENGINE PRIMING,HAND DRIVEN. Key specifications include end_item_identification: CATERPILLAR TRACTOR CO DIESEL ENGINE,MDL 0353. This part is cataloged in the U.S.

Government catalog under NSN 2910-00-978-9496, 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
5L1621
NSN: 2910-00-978-9496
FSC: 2910 — Engine Fuel System Components, Nonaircraft
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
end_item_identificationCATERPILLAR TRACTOR CO DIESEL ENGINE,MDL 0353
NSN2910-00-978-9496
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PUMP,ENGINE PRIMING,HAND DRIVEN TITLE COMPONENT PN 5L1621 MFR PUMP,ENGINE PRIMING,HA
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONCATERPILLAR TRACTOR CO DIESEL ENGINE,MDL 0353
OTHER ITEMS IN FSC 2910 — Engine Fuel System Components, Nonaircraft
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2910-00-007-4802 2910-00-188-8986 2910-00-218-1262 2910-00-218-5908 2910-00-308-8652 2910-00-736-8271 2910-01-021-7915
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5L1621?
5L1621 is a PUMP,ENGINE PRIMING,HAND DRIVEN.
What is the NSN for 5L1621?
5L1621 is cataloged in the U.S. Government catalog under NSN 2910-00-978-9496. 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.