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HR21400 — GUIDE,ENGINE POPPET VALVE TAPPET

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

HR21400: GUIDE,ENGINE POPPET VALVE TAPPET.

GUIDE,ENGINE POPPET VALVE TAPPET. Key specifications include material: COPPER ALLOY, body_diameter: 2.121 INCHES NOMINAL IN, bore_diameter: 1.495 INCHES NOMINAL IN, overall_length: 4.516 INCHES NOMINAL IN, thread_provision: UNTHREADED, flange_outside_diameter: 3.058 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 2815-00-125-9882, 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
HR21400
NSN: 2815-00-125-9882
FSC: 2815 — Diesel Engines and Components
CAGE: 51228 — ECOLAIRE INC BALDWIN-HAMILTON CO DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY
body_diameter2.121 INCHES NOMINAL IN
bore_diameter1.495 INCHES NOMINAL IN
overall_length4.516 INCHES NOMINAL IN
thread_provisionUNTHREADED
flange_outside_diameter3.058 INCHES NOMINAL IN
NSN2815-00-125-9882
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GUIDE,ENGINE POPPET VALVE TAPPET TITLE COMPONENT PN HR21400 MFR GUIDE,ENGINE POPPET VA
KEY FEATURES
•
BODY DIAMETER: 2.121 INCHES NOMINAL IN
•
THREAD PROVISION: UNTHREADED
•
BORE DIAMETER: 1.495 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY
•
FLANGE OUTSIDE DIAMETER: 3.058 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
BODY DIAMETER2.121 INCHES NOMINAL IN
THREAD PROVISIONUNTHREADED
OVERALL LENGTH4.516 INCHES NOMINAL IN
BORE DIAMETER1.495 INCHES NOMINAL IN
MATERIALCOPPER ALLOY
FLANGE OUTSIDE DIAMETER3.058 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
60143-8Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 HR21400?
HR21400 is a GUIDE,ENGINE POPPET VALVE TAPPET.
What parts can replace HR21400?
There is 1 known substitute for HR21400: 60143-8. Substitute compatibility should be verified for your specific system.
What is the NSN for HR21400?
HR21400 is cataloged in the U.S. Government catalog under NSN 2815-00-125-9882. 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.