PartsTable
Technical Data Sheet
TTRS-4 ✓ 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 TTRS-4 is a the manufacturer industrial component. Key specifications include color: BLACK FIRST POSITION JACKET CABLE, material: TIN SECOND POSITION COATING ALL GROUPS, conductor_form: STRANDED ALL CONDUCTORS, voltage_rating: 300.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE ALL CONDUCTORS, special_features: EACH PAIR CONTAINS ONE BLACK CONDUCTOR AND ONE WHITE OR NATURAL CONDUCTOR, round_conductor_size: 20 AWG ALL CONDUCTORS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-00-921-0754, 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 TTRS-4
NSN: 6145-00-921-0754
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
materialTIN SECOND POSITION COATING ALL GROUPS
conductor_formSTRANDED ALL CONDUCTORS
voltage_rating300.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE ALL CONDUCTORS
special_featuresEACH PAIR CONTAINS ONE BLACK CONDUCTOR AND ONE WHITE OR NATURAL CONDUCTOR
conductor_quantity8
round_conductor_size20 AWG ALL CONDUCTORS
cross-sectional_shape_styleROUND
strand_awg_size_per_conductor28 ALL CONDUCTORS
strand_quantity_per_conductor7 ALL CONDUCTORS
cross_section_outside_diameter0.712 INCHES NOMINAL IN
conductor_arrangement_and_quantity4 TWISTED PAIR
NSN6145-00-921-0754
COMPONENT DIAGRAM
WIRE / CABLE — AMPACITY DEPENDS ON INSTALLATION CROSS-SECTION JACKET WIRE SPECIFICATIONS Conductor Size: — Conductor Count: — Voltage Rating: — Insulation: — Temp Rating: — PN: TTRS-4 · 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
MATERIAL: COPPER CORE CONDUCTOR ALL CONDUCTORS
CONDUCTOR GROUPING ARRANGEMENT TYPE AND QUANTITY: 4 TWISTED PAIR ALL GROUPS
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-M-20693 TYPE 3GRADE E OR TYPE 4 MIL SPEC ALL MATERIAL RESPONSES SECOND POSITION JACKET ALL CONDUCTORS
STRAND QUANTITY PER CONDUCTOR: 7 ALL CONDUCTORS
CONDUCTOR FORM: STRANDED ALL CONDUCTORS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER CORE CONDUCTOR ALL CONDUCTORS
CONDUCTOR GROUPING ARRANGEMENT TYPE AND QUANTITY4 TWISTED PAIR ALL GROUPS
MATERIALPLASTIC POLYVINYL CHLORIDE (PVC) FIRST POSITION JACKET CABLE
MATERIALPLASTIC, POLYETHYLENE (PP) FIRST POSITION PRIMARY INSULATION ALL CONDUCTORS
MATERIALPLASTIC POLYAMIDE NYLON SECOND POSITION JACKET ALL CONDUCTORS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-M-20693 TYPE 3GRADE E OR TYPE 4 MIL SPEC ALL MATERIAL RESPONSES SECOND POSITION JACKET ALL CONDUCTORS
STRAND QUANTITY PER CONDUCTOR7 ALL CONDUCTORS
CONDUCTOR FORMSTRANDED ALL CONDUCTORS
VOLTAGE RATING300.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE ALL CONDUCTORS
CONDUCTOR QUANTITY8
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
MIL-C-915/25Upgraded Successor
successor cross-reference
successor
MIL-DTL-24643/13Upgraded Successor
successor cross-reference
successor
M24643/13-07UNUpgraded Successor
successor cross-reference
successor
MIL-C-24643/13Upgraded Successor
successor cross-reference
successor
TTRS-12Upgraded Successor
successor cross-reference
successor
LO5099Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TTRS-4?
TTRS-4 is a TTRS-4. It is classified as a MRO (MRO_GENERAL).
What parts can replace TTRS-4?
There are 12 known substitutes for TTRS-4: MIL-C-915/25, MIL-DTL-24643/13, M24643/13-07UN and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for TTRS-4?
TTRS-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-00-921-0754. This indicates validated use in U.S. government and defense supply chains.
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