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Technical Data Sheet
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9900111 — Technical Data Sheet

✓ Government record, cited
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include end_item_identification: DIESEL ENGINE,83490022. This part is cataloged in the U.S.

Government catalog under NSN 5120-00-049-9454, 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
9900111
NSN: 5120-00-049-9454
NIINs: 000499454, 012435612, 013215642
FSC: 5120 — Hand Tools, Nonedged, Nonpowered
CAGE: 30874 — INTERNATIONAL BUSINESS MACHINES CORPORATION DBA IBM (USA)
SPECIFICATIONS
end_item_identificationDIESEL ENGINE,83490022
NSN5120-00-049-9454
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PISTON,INTERNAL COMBUSTION ENGIN TITLE COMPONENT PN 9900111 MFR PISTON,INTERNAL COMBUS
KEY FEATURES
•
LARGE END HEAD ANGLE: 15.0 DEGREES NOMINAL
•
LARGE END HEAD THICKNESS: 0.040 INCHES NOMINAL IN
•
SMALL END HEAD THICKNESS: 0.040 INCHES NOMINAL IN
•
SMALL END HEAD ANGLE: 15.0 DEGREES NOMINAL
•
WRENCHING SURFACE SIZE: 0.125 INCHES NOMINAL FIRST END IN
•
STYLE DESIGNATOR: THIN DOUBLE HEAD
TECHNICAL CHARACTERISTICS
LARGE END HEAD ANGLE15.0 DEGREES NOMINAL
LARGE END HEAD THICKNESS0.040 INCHES NOMINAL IN
SMALL END HEAD THICKNESS0.040 INCHES NOMINAL IN
SMALL END HEAD ANGLE15.0 DEGREES NOMINAL
WRENCHING SURFACE SIZE0.125 INCHES NOMINAL FIRST END IN
WRENCHING SURFACE SIZE0.156 INCHES NOMINAL SECOND END IN
STYLE DESIGNATORTHIN DOUBLE HEAD
OVERALL LENGTH4.000 INCHES NOMINAL IN
WRENCHING SURFACE SHAPEOVAL BOTH ENDS INTERNAL
SURFACE TREATMENTCHROMIUM OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
HSK9923Possible match (shared part number)
Possible match (shared part number)
Possible match (shared part number)
9900266Reference 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 9900111?
9900111 is a PISTON,INTERNAL COMBUSTION ENGIN.
What parts can replace 9900111?
There are 2 known substitutes for 9900111: HSK9923, 9900266. Substitute compatibility should be verified for your specific system.
What is the NSN for 9900111?
9900111 is cataloged in the U.S. Government catalog under NSN 5120-00-049-9454. 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.