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Technical Data Sheet
PartsTable / MRO / TTRSA-12
TTRSA-12 ✓ 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 TTRSA-12 is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 5056 SECOND POSITION ARMOR CABLE, conductor_form: STRANDED ALL CONDUCTORS, voltage_rating: 300.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE ALL CONDUCTORS, conductor_quantity: 24, round_conductor_size: 20 AWG ALL CONDUCTORS, cross-sectional_shape_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-00-926-3423, 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→ TTRSA-12
NSN: 6145-00-926-3423
FSC: 6145
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialALUMINUM ALLOY 5056 SECOND POSITION ARMOR CABLE
conductor_formSTRANDED ALL CONDUCTORS
voltage_rating300.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE ALL CONDUCTORS
conductor_quantity24
round_conductor_size20 AWG ALL CONDUCTORS
cross-sectional_shape_styleROUND
strand_awg_size_per_conductor28 ALL CONDUCTORS
strand_quantity_per_conductor7 ALL CONDUCTORS
criticality_code_justificationFEAT
cross_section_outside_diameter1.108 INCHES NOMINAL IN
conductor_arrangement_and_quantity12 TWISTED PAIR
material_document_and_classificationMIL-I-631 TYPE G MIL SPEC SINGLE MATERIAL RESPONSE THIRD POSITION TAPE ALL GROUPS
NSN6145-00-926-3423
COMPONENT DIAGRAM
WIRE / CABLE — AMPACITY DEPENDS ON INSTALLATION CROSS-SECTION JACKET WIRE SPECIFICATIONS Conductor Size: — Conductor Count: — Voltage Rating: — Insulation: — Temp Rating: — PN: TTRSA-12 · 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: ALUMINUM ALLOY 5056 AND ALUMINUM ALLOY 6253 SECOND POSITION ARMOR CABLE
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
CONDUCTOR QUANTITY: 24
•
ROUND CONDUCTOR SIZE: 20 AWG ALL CONDUCTORS
•
STRAND AWG SIZE PER CONDUCTOR: 28 ALL CONDUCTORS
•
CROSS SECTION OUTSIDE DIAMETER: 1.145 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALALUMINUM ALLOY 5056 AND ALUMINUM ALLOY 6253 SECOND POSITION ARMOR CABLE
MATERIALPLASTIC, POLYETHYLENE (PP) FIRST POSITION PRIMARY INSULATION ALL CONDUCTORS
CROSS-SECTIONAL SHAPE STYLEROUND
CONDUCTOR QUANTITY24
ROUND CONDUCTOR SIZE20 AWG ALL CONDUCTORS
MATERIALCOPPER CORE CONDUCTOR ALL CONDUCTORS
STRAND AWG SIZE PER CONDUCTOR28 ALL CONDUCTORS
CROSS SECTION OUTSIDE DIAMETER1.145 INCHES NOMINAL IN
STRAND QUANTITY PER CONDUCTOR7 ALL CONDUCTORS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-M-20693 TYPE 3GRADE E OR TYPE 4 MIL SPEC ALL MATERIAL RESPONSES SECOND POSITION JACKET ALL CONDUCTORS
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 TTRSA-12?
TTRSA-12 is a TTRSA-12. It is classified as a MRO (MRO_GENERAL).
What parts can replace TTRSA-12?
There are 12 known substitutes for TTRSA-12: 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 TTRSA-12?
TTRSA-12 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-00-926-3423. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026