PartsTable
Technical Data Sheet
Download PDF

A21857 — TAPPET,ENGINE POPPET VALVE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

A21857: TAPPET,ENGINE POPPET VALVE.

The TAPPET,ENGINE POPPET VALVE is a the manufacturer industrial component. Key specifications include oversize: 0.009 INCHES NOMINAL IN, adjustability: NONADJUSTABLE, operation_method: HYDRAULIC, size_designation: OVERSIZE. This part is cataloged in the U.S.

Government catalog under NSN 2815-01-259-8948, 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
A21857
NSN: 2815-01-259-8948
FSC: 2815 — Diesel Engines and Components
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
oversize0.009 INCHES NOMINAL IN
adjustabilityNONADJUSTABLE
operation_methodHYDRAULIC
size_designationOVERSIZE
NSN2815-01-259-8948
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TAPPET,ENGINE POPPET VALVE TITLE COMPONENT PN A21857 MFR TAPPET,ENGINE POPPET V
KEY FEATURES
•
ADJUSTABILITY: NONADJUSTABLE
•
SIZE DESIGNATION: OVERSIZE
•
OVERSIZE: 0.009 INCHES NOMINAL IN
•
OPERATION METHOD: HYDRAULIC
TECHNICAL CHARACTERISTICS
ADJUSTABILITYNONADJUSTABLE
SIZE DESIGNATIONOVERSIZE
OVERSIZE0.009 INCHES NOMINAL IN
OPERATION METHODHYDRAULIC
OTHER ITEMS IN FSC 2815 — Diesel Engines and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2815-00-000-0075 2815-00-001-0022 2815-00-001-3475 2815-00-001-7728 2815-00-001-7737 2815-00-001-7805 2815-00-001-7806 2815-00-001-7813
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
Ready to buy A21857?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is A21857?
A21857 is a TAPPET,ENGINE POPPET VALVE.
What is the NSN for A21857?
A21857 is cataloged in the U.S. Government catalog under NSN 2815-01-259-8948. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — A21857

✓ 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.