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Technical Data Sheet
PartsTable / MRO / 3910E18U1
3910E18U1 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Stranded for flexible routing, solid for conduit THHN/THWN dual-rated — check both tables
Ampacity depends on installation method
PRODUCT OVERVIEW

The 3910E18U1 is a the manufacturer industrial component. Key specifications include color: BROWN FIRST POSITION COVER SINGLE CONDUCTOR, material: COPPER CORE CONDUCTOR SINGLE CONDUCTOR, temp_rating: 200.0 CELSIUS DEGC, conductor_form: STRANDED SINGLE CONDUCTOR, voltage_rating: 600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR, precious_material: SILVER. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-00-815-9523, 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→ 3910E18U1
NSN: 6145-00-815-9523
FSC: 6145
CAGE: 80045 — L3HARRIS CINCINNATI ELECTRONICS CORPORATION (USA)
SPECIFICATIONS
colorBROWN FIRST POSITION COVER SINGLE CONDUCTOR
materialCOPPER CORE CONDUCTOR SINGLE CONDUCTOR
temp_rating200.0 CELSIUS DEGC
conductor_formSTRANDED SINGLE CONDUCTOR
voltage_rating600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
precious_materialSILVER
surface_treatmentSILVER CORE CONDUCTOR SINGLE CONDUCTOR
round_conductor_size18 AWG SINGLE CONDUCTOR
cross-sectional_shape_styleROUND
strand_awg_size_per_conductor30 SINGLE CONDUCTOR
strand_quantity_per_conductor19 SINGLE CONDUCTOR
cross_section_outside_diameter0.069 INCHES NOMINAL IN
NSN6145-00-815-9523
COMPONENT DIAGRAM
WIRE / CABLE — AMPACITY DEPENDS ON INSTALLATION CROSS-SECTION JACKET WIRE SPECIFICATIONS Conductor Size: — Conductor Count: — Voltage Rating: — Insulation: — Temp Rating: — PN: 3910E18U1 · OEM ⚠ VERIFY BEFORE ORDERING Ampacity depends on installation method — conduit ≠ free air ≠ underground. Same wire, different ratings. AWG sizing is inverse — smaller number = thicker wire (4 AWG > 12 AWG) ✓ BROKER TIP Stranded = flexible routing and vibration resistance. Solid = fixed conduit runs only. THHN/THWN = dual rated — check both dry and wet ampacity tables PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
TEMP RATING: 200.0 CELSIUS DEGC
•
CROSS SECTION OUTSIDE DIAMETER: 0.069 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
SURFACE TREATMENT: SILVER CORE CONDUCTOR SINGLE CONDUCTOR
•
PRECIOUS MATERIAL AND LOCATION: SURFACE SINGLE CONDUCTOR SILVER
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B298 ASSN STD SINGLE MATERIAL RESPONSE CORE CONDUCTOR SINGLE CONDUCTOR
•
MATERIAL: COPPER CORE CONDUCTOR SINGLE CONDUCTOR
•
COLOR: BROWN FIRST POSITION COVER SINGLE CONDUCTOR
TECHNICAL CHARACTERISTICS (FLIS)
TEMP RATING200.0 CELSIUS DEGC
CROSS SECTION OUTSIDE DIAMETER0.069 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEROUND
SURFACE TREATMENTSILVER CORE CONDUCTOR SINGLE CONDUCTOR
PRECIOUS MATERIAL AND LOCATIONSURFACE SINGLE CONDUCTOR SILVER
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B298 ASSN STD SINGLE MATERIAL RESPONSE CORE CONDUCTOR SINGLE CONDUCTOR
MATERIALCOPPER CORE CONDUCTOR SINGLE CONDUCTOR
COLORBROWN FIRST POSITION COVER SINGLE CONDUCTOR
VOLTAGE RATING600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE FIRST POSITION PRIMARY INSULATION SINGLE CONDUCTOR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
MIL-W-16878/4Upgraded Successor
successor cross-reference
successor
MIL-DTL-27500Upgraded Successor
successor cross-reference
successor
M27500-16RC1S06Upgraded Successor
successor cross-reference
successor
SM-C-686444-902Upgraded Successor
successor cross-reference
successor
ES7751-22EJ902Upgraded Successor
successor cross-reference
successor
ES7751-22EJ978Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3910E18U1?
3910E18U1 is a 3910E18U1. It is classified as a MRO (MRO_GENERAL).
What parts can replace 3910E18U1?
There are 30 known substitutes for 3910E18U1: MIL-W-16878/4, MIL-DTL-27500, M27500-16RC1S06 and 27 more. Substitute compatibility should be verified for your specific system.
Is 3910E18U1 still available?
3910E18U1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026