PartsTable
Technical Data Sheet
PartsTable / MRO / 8521-9
8521-9 ✓ 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 8521-9 is a the manufacturer industrial component. Key specifications include cross-sectional_height: 0.125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-00-900-0259, 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→ 8521-9
NSN: 6145-00-900-0259
FSC: 6145
CAGE: 16428 — BELDEN WIRE & CABLE COMPANY LLC DBA BELDEN CDT ELECTRONICS DIVISION (USA)
SPECIFICATIONS
cross-sectional_height0.125 INCHES NOMINAL IN
NSN6145-00-900-0259
COMPONENT DIAGRAM
WIRE / CABLE — AMPACITY DEPENDS ON INSTALLATION CROSS-SECTION JACKET WIRE SPECIFICATIONS Conductor Size: — Conductor Count: — Voltage Rating: — Insulation: — Temp Rating: — PN: 8521-9 · 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
•
CROSS SECTION OUTSIDE DIAMETER: 0.095 INCHES NOMINAL IN
•
TEMP RATING: -40.0 CELSIUS AND 80.0 CELSIUS DEGC
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
STRAND AWG SIZE PER CONDUCTOR: 30 SINGLE CONDUCTOR
•
ROUND CONDUCTOR SIZE: 16 AWG SINGLE CONDUCTOR
•
CONDUCTOR FORM: STRANDED SINGLE CONDUCTOR
•
SURFACE TREATMENT: TIN CORE CONDUCTOR SINGLE CONDUCTOR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-I-3930,TYPE 1P MIL SPEC SINGLE MATERIAL RESPONSE FIRST POSITION PRIMARY INSULATION SINGLE CONDUCTOR
TECHNICAL CHARACTERISTICS (FLIS)
CROSS SECTION OUTSIDE DIAMETER0.095 INCHES NOMINAL IN
TEMP RATING-40.0 CELSIUS AND 80.0 CELSIUS DEGC
CROSS-SECTIONAL SHAPE STYLEROUND
STRAND AWG SIZE PER CONDUCTOR30 SINGLE CONDUCTOR
ROUND CONDUCTOR SIZE16 AWG SINGLE CONDUCTOR
CONDUCTOR FORMSTRANDED SINGLE CONDUCTOR
SURFACE TREATMENTTIN CORE CONDUCTOR SINGLE CONDUCTOR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-I-3930,TYPE 1P MIL SPEC SINGLE MATERIAL RESPONSE FIRST POSITION PRIMARY INSULATION SINGLE CONDUCTOR
MATERIALCOPPER CORE CONDUCTOR SINGLE CONDUCTOR
STRAND QUANTITY PER CONDUCTOR26 SINGLE CONDUCTOR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
19D321320-6Upgraded Successor
successor cross-reference
successor
M16878/18BGB6Upgraded Successor
successor cross-reference
successor
MW-C20(7)J6Upgraded Successor
successor cross-reference
successor
MIL-DTL-76Upgraded Successor
successor cross-reference
successor
MIL-W-76Upgraded Successor
successor cross-reference
successor
M76MWPC1816B7Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8521-9?
8521-9 is a 8521-9. It is classified as a MRO (MRO_GENERAL).
What parts can replace 8521-9?
There are 22 known substitutes for 8521-9: 19D321320-6, M16878/18BGB6, MW-C20(7)J6 and 19 more. Substitute compatibility should be verified for your specific system.
Is 8521-9 still available?
8521-9 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