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Technical Data Sheet
PartsTable / COMPONENT / MIL-W-16878/25
MIL-W-16878/25 ✓ Verified by PartsTable
— · WIRE CABLE
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 MIL-W-16878/25 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-00-283-7641, 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
MIL-W-16878/25
NSN: 6145-00-283-7641
FSC: 6145
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberMIL-W-16878/25
NSN6145-00-283-7641
COMPONENT DIAGRAM
WIRE / CABLE — AMPACITY DEPENDS ON INSTALLATION CROSS-SECTION JACKET WIRE SPECIFICATIONS Conductor Size: — Conductor Count: — Voltage Rating: — Insulation: — Temp Rating: — PN: MIL-W-16878/25 · 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
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
CROSS SECTION OUTSIDE DIAMETER: 0.058 INCHES NOMINAL IN
•
ROUND CONDUCTOR SIZE: 20 AWG SINGLE CONDUCTOR
•
SURFACE TREATMENT: NICKEL CORE CONDUCTOR SINGLE CONDUCTOR
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B355 ASSN STD ALL MATERIAL RESPONSES CORE CONDUCTOR SINGLE CONDUCTOR
•
CONDUCTOR FORM: STRANDED SINGLE CONDUCTOR
•
VOLTAGE RATING: 600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
•
COLOR: BLACK FIRST POSITION COVER SINGLE CONDUCTOR
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLEROUND
CROSS SECTION OUTSIDE DIAMETER0.058 INCHES NOMINAL IN
ROUND CONDUCTOR SIZE20 AWG SINGLE CONDUCTOR
SURFACE TREATMENTNICKEL CORE CONDUCTOR SINGLE CONDUCTOR
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B355 ASSN STD ALL MATERIAL RESPONSES CORE CONDUCTOR SINGLE CONDUCTOR
CONDUCTOR FORMSTRANDED SINGLE CONDUCTOR
VOLTAGE RATING600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
COLORBLACK FIRST POSITION COVER SINGLE CONDUCTOR
TEMP RATING260.0 CELSIUS DEGC
STRAND AWG SIZE PER CONDUCTOR32 SINGLE CONDUCTOR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
MIL-W-16878/25Upgraded Successor
successor cross-reference
successor
M16878/25BFE0Upgraded Successor
successor cross-reference
successor
62858Upgraded Successor
successor cross-reference
successor
AS22759/12Upgraded Successor
successor cross-reference
successor
MIL-W-22759/12Upgraded Successor
successor cross-reference
successor
62876Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-W-16878/25?
MIL-W-16878/25 is a MIL-W-16878/25.
What parts can replace MIL-W-16878/25?
There are 18 known substitutes for MIL-W-16878/25: MIL-W-16878/25, M16878/25BFE0, 62858 and 15 more. Substitute compatibility should be verified for your specific system.
Is MIL-W-16878/25 still available?
MIL-W-16878/25 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