PartsTable
Technical Data Sheet
TTSU-20 ✓ 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 TTSU-20 is a the manufacturer industrial component. Key specifications include color: GRAY/GREY FIRST POSITION JACKET CABLE, material: PLASTIC POLYVINYL CHLORIDE (PVC) FIRST POSITION JACKET CABLE, conductor_form: STRANDED ALL CONDUCTORS, voltage_rating: 300.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE ALL CONDUCTORS, conductor_quantity: 40, round_conductor_size: 22 AWG ALL CONDUCTORS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-00-110-6451, 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 TTSU-20
NSN: 6145-00-110-6451
FSC: 6145
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
colorGRAY/GREY FIRST POSITION JACKET CABLE
materialPLASTIC POLYVINYL CHLORIDE (PVC) FIRST POSITION JACKET CABLE
conductor_formSTRANDED ALL CONDUCTORS
voltage_rating300.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE ALL CONDUCTORS
conductor_quantity40
round_conductor_size22 AWG ALL CONDUCTORS
cross-sectional_shape_styleROUND
strand_awg_size_per_conductor30 ALL CONDUCTORS
strand_quantity_per_conductor7 ALL CONDUCTORS
cross_section_outside_diameter0.820 INCHES NOMINAL IN
conductor_arrangement_and_quantity20 TWISTED PAIR
material_document_and_classificationSTM B3 ASSN STD SINGLE MATERIAL RESPONSE CORE CONDUCTOR ALL CONDUCTORS
NSN6145-00-110-6451
COMPONENT DIAGRAM
WIRE / CABLE — AMPACITY DEPENDS ON INSTALLATION CROSS-SECTION JACKET WIRE SPECIFICATIONS Conductor Size: — Conductor Count: — Voltage Rating: — Insulation: — Temp Rating: — PN: TTSU-20 · 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
CONDUCTOR QUANTITY: 40
CONDUCTOR FORM: STRANDED ALL CONDUCTORS
MATERIAL: PLASTIC POLYVINYL CHLORIDE (PVC) FIRST POSITION JACKET CABLE
CONDUCTOR ARRANGEMENT AND QUANTITY: 20 TWISTED PAIR
MATERIAL DOCUMENT AND CLASSIFICATION: STM B3 ASSN STD SINGLE MATERIAL RESPONSE CORE CONDUCTOR ALL CONDUCTORS
ROUND CONDUCTOR SIZE: 22 AWG ALL CONDUCTORS
CROSS-SECTIONAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
CONDUCTOR QUANTITY40
CONDUCTOR FORMSTRANDED ALL CONDUCTORS
MATERIALPLASTIC POLYVINYL CHLORIDE (PVC) FIRST POSITION JACKET CABLE
CONDUCTOR ARRANGEMENT AND QUANTITY20 TWISTED PAIR
MATERIAL DOCUMENT AND CLASSIFICATIONSTM B3 ASSN STD SINGLE MATERIAL RESPONSE CORE CONDUCTOR ALL CONDUCTORS
ROUND CONDUCTOR SIZE22 AWG ALL CONDUCTORS
CROSS-SECTIONAL SHAPE STYLEROUND
MATERIALCOPPER CORE CONDUCTOR ALL CONDUCTORS
STRAND QUANTITY PER CONDUCTOR7 ALL CONDUCTORS
STRAND AWG SIZE PER CONDUCTOR30 ALL CONDUCTORS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
MIL-C-915/23Upgraded Successor
successor cross-reference
successor
MIL-C-915/37Upgraded Successor
successor cross-reference
successor
TTHFWA-3Upgraded Successor
successor cross-reference
successor
MIL-DTL-24643/23Upgraded Successor
successor cross-reference
successor
M24643/23-05UNUpgraded Successor
successor cross-reference
successor
TTSU-15Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TTSU-20?
TTSU-20 is a TTSU-20. It is classified as a MRO (MRO_GENERAL).
What parts can replace TTSU-20?
There are 19 known substitutes for TTSU-20: MIL-C-915/23, MIL-C-915/37, TTHFWA-3 and 16 more. Substitute compatibility should be verified for your specific system.
Is TTSU-20 still available?
TTSU-20 is currently cancelled.
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