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Technical Data Sheet
PartsTable / MRO / 11670-1
11670-1 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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: 13.5 OUNCES OZ, diameter: 3.125 INCHES NOMINAL IN, material: STEEL SPRING, oversize: 0.040 INCHES NOMINAL IN, head_style: FLAT, oil_groove: NOT INCLUDED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5895-01-421-5040, 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
MRO→ MRO_GENERAL→ 11670-1
NSN: 5895-01-421-5040
FSC: 5895
CAGE: 62519 — ENGINEERING RESEARCH ASSOCIATES INC (USA)
SPECIFICATIONS
weight13.5 OUNCES OZ
diameter3.125 INCHES NOMINAL IN
materialSTEEL SPRING
oversize0.040 INCHES NOMINAL IN
head_styleFLAT
oil_grooveNOT INCLUDED
seal_width0.170 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
skirt_typeSEMISPLIT
temp_rating-18.0 CELSIUS AND 205.0 CELSIUS DEGC
constructionSOLID
carbon_grooveINCLUDED
overall_height3.750 INCHES NOMINAL IN
NSN5895-01-421-5040
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PISTON,INTERNAL COMBUSTION ENGIN TITLE COMPONENT PN 11670-1 MFR PISTON,INTERNAL COMBUS
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONBELONGS TO ENHANCED TRACKWOLF
END ITEM IDENTIFICATIONBELONGS TO ENHANCED TRACKWOLF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
11670-1Interchangeable
interchangeable cross-reference
interchangeable
22-040Interchangeable
interchangeable cross-reference
interchangeable
1317P040Interchangeable
interchangeable cross-reference
interchangeable
2005-210Interchangeable
interchangeable cross-reference
interchangeable
075-100-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 11670-1?
11670-1 is a PISTON,INTERNAL COMBUSTION ENGIN. It is classified as a MRO (MRO_GENERAL).
What parts can replace 11670-1?
There are 5 known substitutes for 11670-1: 11670-1, 22-040, 1317P040 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 11670-1?
11670-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5895-01-421-5040. 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