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Technical Data Sheet
37-5940 ✓ Verified by PartsTable
3M · 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

- Round construction permits easier routing<br>- 28 AWG wire on .050 inch centers permits mass termination to broad line of IDC connectors<br>- Continuous bond and continuous split/bond allows for mass termination of IDC connectors<br>- Available in continuous bond (non–split) wire for ease of cable fabrication<br>- Meets external wiring requirements of National Electrical Code, Article 725 (CL2)<br>- Primary cable is zippable for branching or discrete terminations This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-01-366-2939, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
37-5940
NSN: 6145-01-366-2939
FSC: 6145
CAGE: 76381 — 3M COMPANY (USA)
SPECIFICATIONS
colorBLACK FIRST POSITION PRIMARY INSULATION ALL CONDUCTORS
materialPLASTIC POLYVINYL CHLORIDE (PVC) FIRST POSITION PRIMARY INSULATION ALL CONDUCTORS
temp_rating-20.0 CELSIUS AND 80.0 CELSIUS DEGC
conductor_formSTRANDED ALL CONDUCTORS
voltage_rating150.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE ALL CONDUCTORS
special_featuresFOLDED CONSTRUCTION PERMITS MASS TERMINATION
surface_treatmentTIN CORE CONDUCTOR ALL CONDUCTORS
conductor_quantity40
round_conductor_size28 AWG ALL CONDUCTORS
cross-sectional_shape_styleROUND
strand_awg_size_per_conductor36 ALL CONDUCTORS
strand_quantity_per_conductor7 ALL CONDUCTORS
NSN6145-01-366-2939
COMPONENT DIAGRAM
WIRE / CABLE — AMPACITY DEPENDS ON INSTALLATION CROSS-SECTION JACKET WIRE SPECIFICATIONS Conductor Size: — Conductor Count: — Voltage Rating: — Insulation: — Temp Rating: — PN: 37-5940 · 3M ⚠ 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
MATERIAL: COPPER CORE CONDUCTOR ALL CONDUCTORS
TEMP RATING: -20.0 CELSIUS AND 80.0 CELSIUS DEGC
STRAND AWG SIZE PER CONDUCTOR: 36 ALL CONDUCTORS
CONDUCTOR FORM: STRANDED ALL CONDUCTORS
ROUND CONDUCTOR SIZE: 28 AWG ALL CONDUCTORS
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLEROUND
MATERIALCOPPER CORE CONDUCTOR ALL CONDUCTORS
TEMP RATING-20.0 CELSIUS AND 80.0 CELSIUS DEGC
STRAND AWG SIZE PER CONDUCTOR36 ALL CONDUCTORS
CONDUCTOR FORMSTRANDED ALL CONDUCTORS
ROUND CONDUCTOR SIZE28 AWG ALL CONDUCTORS
MATERIALPLASTIC POLYVINYL CHLORIDE (PVC) THIRD POSITION JACKET CABLE
MATERIALPLASTIC POLYVINYL CHLORIDE (PVC) FIRST POSITION PRIMARY INSULATION ALL CONDUCTORS
COLORBLACK FIRST POSITION PRIMARY INSULATION ALL CONDUCTORS
STRAND QUANTITY PER CONDUCTOR7 ALL CONDUCTORS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
37-5940Interchangeable
interchangeable cross-reference
interchangeable
5940Interchangeable
interchangeable cross-reference
interchangeable
3759/40Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 37-5940?
37-5940 is a CABLE,SPECIAL PURPOSE,ELECTRICAL manufactured by 3M.
What parts can replace 37-5940?
There are 3 known substitutes for 37-5940: 37-5940, 5940, 3759/40. Substitute compatibility should be verified for your specific system.
What is the NSN for 37-5940?
37-5940 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-01-366-2939. This indicates validated use in U.S. government and defense supply chains.
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