PartsTable
Technical Data Sheet
PartsTable / MRO / MDU-40
MDU-40 ✓ 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 MDU-40 is a the manufacturer industrial component. Key specifications include color: BLACK FIRST POSITION JACKET CABLE, conductor_form: STRANDED ALL CONDUCTORS, voltage_rating: 600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE ALL CONDUCTORS, conductor_quantity: 1919, round_conductor_size: 4 AWG ALL CONDUCTORS, cross-sectional_shape_style: ROUNDROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-00-949-5787, 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→ MDU-40
NSN: 6145-00-949-5787
FSC: 6145
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
colorBLACK FIRST POSITION JACKET CABLE
conductor_formSTRANDED ALL CONDUCTORS
voltage_rating600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE ALL CONDUCTORS
conductor_quantity1919
round_conductor_size4 AWG ALL CONDUCTORS
cross-sectional_shape_styleROUNDROUND
strand_awg_size_per_conductor17 ALL CONDUCTORS
strand_quantity_per_conductor19 ALL CONDUCTORS
cross_section_outside_diameter2.030 INCHES NOMINAL2.030 INCHES NOMINAL IN
conductor_arrangement_and_quantity19 SINGLES
material_document_and_classificationASTM B3 ASSN STD SINGLE MATERIAL RESPONSE CORE CONDUCTOR ALL CONDUCTORS
NSN6145-00-949-5787
COMPONENT DIAGRAM
WIRE / CABLE — AMPACITY DEPENDS ON INSTALLATION CROSS-SECTION JACKET WIRE SPECIFICATIONS Conductor Size: — Conductor Count: — Voltage Rating: — Insulation: — Temp Rating: — PN: MDU-40 · 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
•
ROUND CONDUCTOR SIZE: 4 AWG ALL CONDUCTORS
•
CONDUCTOR FORM: STRANDED ALL CONDUCTORS
•
CROSS SECTION OUTSIDE DIAMETER: 2.020 INCHES NOMINAL IN
•
STRAND QUANTITY PER CONDUCTOR: 19 ALL CONDUCTORS
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B3 ASSN STD SINGLE MATERIAL RESPONSE CORE CONDUCTOR ALL CONDUCTORS
•
MATERIAL: COPPER CORE CONDUCTOR ALL CONDUCTORS
TECHNICAL CHARACTERISTICS (FLIS)
ROUND CONDUCTOR SIZE4 AWG ALL CONDUCTORS
CONDUCTOR FORMSTRANDED ALL CONDUCTORS
CROSS SECTION OUTSIDE DIAMETER2.020 INCHES NOMINAL IN
STRAND QUANTITY PER CONDUCTOR19 ALL CONDUCTORS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B3 ASSN STD SINGLE MATERIAL RESPONSE CORE CONDUCTOR ALL CONDUCTORS
MATERIALCOPPER CORE CONDUCTOR ALL CONDUCTORS
MATERIALPLASTIC FIRST POSITION JACKET CABLE
MATERIALPLASTIC POLYVINYL CHLORIDE (PVC) FIRST POSITION PRIMARY INSULATION ALL CONDUCTORS
STRAND AWG SIZE PER CONDUCTOR17 ALL CONDUCTORS
CONDUCTOR ARRANGEMENT AND QUANTITY19 SINGLES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
LSMDU-6Upgraded Successor
successor cross-reference
successor
MIL-C-24643/5Upgraded Successor
successor cross-reference
successor
MIL-DTL-24643/5Upgraded Successor
successor cross-reference
successor
MIL-C-915/12Upgraded Successor
successor cross-reference
successor
MDU-23Upgraded Successor
successor cross-reference
successor
M24643/5-03UNUpgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy MDU-40?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is MDU-40?
MDU-40 is a MDU-40. It is classified as a MRO (MRO_GENERAL).
What parts can replace MDU-40?
There are 10 known substitutes for MDU-40: LSMDU-6, MIL-C-24643/5, MIL-DTL-24643/5 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MDU-40?
MDU-40 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-00-949-5787. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — MDU-40

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026