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4836A — PISTON,INTERNAL COMBUSTION ENGIN

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

4836A: PISTON,INTERNAL COMBUSTION ENGIN.

PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include material: STEEL, thread_class: 2A STUD THREAD A, thread_length: 0.750 INCHES MINIMUM NUT THREAD IN, overall_length: 4.125 INCHES NOMINAL IN, thread_direction: RIGHT-HAND STUD THREAD, nominal_thread_size: 0.375 INCHES STUD THREAD IN. This part is cataloged in the U.S.

Government catalog under NSN 2805-00-422-5979, 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
4836A
NSN: 2805-00-422-5979
NIINs: 004225979, 006389562
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
materialSTEEL
thread_class2A STUD THREAD A
thread_length0.750 INCHES MINIMUM NUT THREAD IN
overall_length4.125 INCHES NOMINAL IN
thread_directionRIGHT-HAND STUD THREAD
nominal_thread_size0.375 INCHES STUD THREAD IN
thread_quantity_per_inch24 NUT THREAD
thread_series_designatorUNF NUT THREAD
NSN2805-00-422-5979
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PISTON,INTERNAL COMBUSTION ENGIN TITLE COMPONENT PN 4836A MFR PISTON,INTERNAL COMBUS
KEY FEATURES
•
FSC APPLICATION DATA: ENGINE,GASOLINE,NONAIRCRAFT
•
CARBON GROOVE: NOT INCLUDED
•
RING GROOVE WIDTH: 0.1562 INCHES MINIMUM FIRST RING IN
•
DISTANCE BETWEEN PIN BOSSES: 1.281 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT5.750 INCHES NOMINAL IN
FSC APPLICATION DATAENGINE,GASOLINE,NONAIRCRAFT
CARBON GROOVENOT INCLUDED
RING GROOVE WIDTH0.1562 INCHES MINIMUM FIRST RING IN
RING GROOVE WIDTH0.1562 INCHES MINIMUM THIRD RING IN
RING GROOVE WIDTH0.1572 INCHES MAXIMUM FOURTH RING IN
RING GROOVE WIDTH0.1572 INCHES MAXIMUM SECOND RING IN
DISTANCE BETWEEN PIN BOSSES1.281 INCHES NOMINAL IN
RETAINING RING GROOVENOT INCLUDED
SURFACE FINISHFINISHED
SUBSTITUTES & CROSS-REFERENCES 2
359Reference document
Same NSN cross-reference
Reference document — Secondary reference
A4836AReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4836A?
4836A is a PISTON,INTERNAL COMBUSTION ENGIN.
What parts can replace 4836A?
There are 2 known substitutes for 4836A: 359, A4836A. Substitute compatibility should be verified for your specific system.
What is the NSN for 4836A?
4836A is cataloged in the U.S. Government catalog under NSN 2805-00-422-5979. 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.