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PartsTable / COMPONENT / P191-5
P191-5 ✓ Verified by PartsTable
— · 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 weight: 18.0 OUNCES OZ, diameter: 3.438 INCHES NOMINAL IN, material: ALUMINUM ALLOY 2024, head_style: FLAT, oil_groove: NOT INCLUDED, skirt_type: SOLID. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2920-00-524-3875, 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
P191-5
NSN: 2920-00-524-3875
FSC: 2920
CAGE: 24975 — PRESTOLITE ELECTRIC INC (USA)
SPECIFICATIONS
weight18.0 OUNCES OZ
diameter3.438 INCHES NOMINAL IN
materialALUMINUM ALLOY 2024
head_styleFLAT
oil_grooveNOT INCLUDED
skirt_typeSOLID
carbon_grooveNOT INCLUDED
overall_height3.568 INCHES NOMINAL IN
surface_finishFINISHED
first_leg_angle0.1250 RADIANS NOMINAL
first_leg_styleSQUARE
first_leg_width0.5000 INCHES NOMINAL IN
NSN2920-00-524-3875
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PISTON,INTERNAL COMBUSTION ENGIN TITLE COMPONENT PN P191-5 MFR PISTON,INTERNAL COMBUS
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: METAL,4.500 IN. OD,1.812 IN. BETWEEN POSTS,0.625 IN. BY 0.625 IN. BRASS BUSHING IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONMETAL,4.500 IN. OD,1.812 IN. BETWEEN POSTS,0.625 IN. BY 0.625 IN. BRASS BUSHING IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
S2603-860062SZ4 3-4WHAIRPINInterchangeable
interchangeable cross-reference
interchangeable
860062Interchangeable
interchangeable cross-reference
interchangeable
F163A04031EInterchangeable
interchangeable cross-reference
interchangeable
991210Interchangeable
interchangeable cross-reference
interchangeable
CTF245A4011EInterchangeable
interchangeable cross-reference
interchangeable
8600-0062Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is P191-5?
P191-5 is a PISTON,INTERNAL COMBUSTION ENGIN.
What parts can replace P191-5?
There are 16 known substitutes for P191-5: S2603-860062SZ4 3-4WHAIRPIN, 860062, F163A04031E and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for P191-5?
P191-5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2920-00-524-3875. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026