PartsTable
Technical Data Sheet
PartsTable / MRO / 690255
690255 ✓ 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 690255 is a the manufacturer industrial component. Key specifications include body_width: 1.750 INCHES NOMINAL IN, body_height: 2.120 INCHES NOMINAL IN, body_length: 1.810 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED, inductance_type: FIXED, mounting_method: THREADED HOLE(S) SINGLE GROUP. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-00-161-0906, 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→ 690255
NSN: 6145-00-161-0906
FSC: 6145
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
body_width1.750 INCHES NOMINAL IN
body_height2.120 INCHES NOMINAL IN
body_length1.810 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
inductance_typeFIXED
mounting_methodTHREADED HOLE(S) SINGLE GROUP
winding_quantity1 SINGLE COMPONENT
inductance_rating900.00 MILLIHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING
nominal_thread_size0.138 INCHES SINGLE GROUP IN
thread_quantity_per_inch32 SINGLE GROUP
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
winding_operating_current100.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
NSN6145-00-161-0906
COMPONENT DIAGRAM
WIRE / CABLE — AMPACITY DEPENDS ON INSTALLATION CROSS-SECTION JACKET WIRE SPECIFICATIONS Conductor Size: — Conductor Count: — Voltage Rating: — Insulation: — Temp Rating: — PN: 690255 · 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 FORM: SOLID SINGLE CONDUCTOR
•
MATERIAL: COPPER CORE CONDUCTOR SINGLE CONDUCTOR
•
VOLTAGE RATING: 1900.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
•
ROUND CONDUCTOR SIZE: 20 AWG SINGLE CONDUCTOR
•
CONDUCTOR ARRANGEMENT AND QUANTITY: 1 COAXIAL
•
SURFACE TREATMENT: TIN CORE CONDUCTOR SINGLE CONDUCTOR
•
NOMINAL CAPACITANCE IN PICOFARADS: 28.5 PER FOOT
•
CONDUCTOR QUANTITY: 1
TECHNICAL CHARACTERISTICS (FLIS)
CONDUCTOR FORMSOLID SINGLE CONDUCTOR
MATERIALCOPPER CORE CONDUCTOR SINGLE CONDUCTOR
VOLTAGE RATING1900.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
ROUND CONDUCTOR SIZE20 AWG SINGLE CONDUCTOR
CONDUCTOR ARRANGEMENT AND QUANTITY1 COAXIAL
SURFACE TREATMENTTIN CORE CONDUCTOR SINGLE CONDUCTOR
NOMINAL CAPACITANCE IN PICOFARADS28.5 PER FOOT
CONDUCTOR QUANTITY1
CROSS SECTION OUTSIDE DIAMETER0.195 INCHES NOMINAL IN
ELECTRICAL RESISTANCE53.5 OHMS IMPEDANCE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
RG58AUUpgraded Successor
successor cross-reference
successor
1080H38H39Upgraded Successor
successor cross-reference
successor
RG58C-UUpgraded Successor
successor cross-reference
successor
690255Interchangeable
interchangeable cross-reference
interchangeable
19ME403-2Interchangeable
Same NIIN cross-reference
interchangeable
5L1445Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 690255?
690255 is a 690255. It is classified as a MRO (MRO_GENERAL).
What parts can replace 690255?
There are 8 known substitutes for 690255: RG58AU, 1080H38H39, RG58C-U and 5 more. Substitute compatibility should be verified for your specific system.
Is 690255 still available?
690255 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026