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5S2921 — GUIDE,ENGINE POPPET VALVE TAPPET

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

5S2921: GUIDE,ENGINE POPPET VALVE TAPPET.

GUIDE,ENGINE POPPET VALVE TAPPET. Key specifications include material: STEEL, overall_length: 3.042 INCHES NOMINAL IN, outside_diameter: 0.562 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 2815-01-028-4408, 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
5S2921
NSN: 2815-01-028-4408
FSC: 2815 — Diesel Engines and Components
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL
overall_length3.042 INCHES NOMINAL IN
outside_diameter0.562 INCHES NOMINAL IN
NSN2815-01-028-4408
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GUIDE,ENGINE POPPET VALVE TAPPET TITLE COMPONENT PN 5S2921 MFR GUIDE,ENGINE POPPET VA
KEY FEATURES
•
OUTSIDE DIAMETER: 0.562 INCHES NOMINAL IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
OVERALL LENGTH3.042 INCHES NOMINAL IN
OUTSIDE DIAMETER0.562 INCHES NOMINAL IN
MATERIALSTEEL
OTHER ITEMS IN FSC 2815 — Diesel Engines and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2815-00-011-9099 2815-00-017-1875 2815-00-024-4185 2815-00-033-1482 2815-00-036-5350 2815-00-179-7630 2815-00-346-4639 2815-00-592-5308
SUBSTITUTES & CROSS-REFERENCES 1
IPD5S2921Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 5S2921?
5S2921 is a GUIDE,ENGINE POPPET VALVE TAPPET.
What parts can replace 5S2921?
There is 1 known substitute for 5S2921: IPD5S2921. Substitute compatibility should be verified for your specific system.
What is the NSN for 5S2921?
5S2921 is cataloged in the U.S. Government catalog under NSN 2815-01-028-4408. 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.