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Technical Data Sheet
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W18 ✓ Verified by PartsTable
— · CABLE ASSEMBLY
WHAT YOU NEED TO KNOW
SAS cables have specific lane counts: 4i (internal) or 4e (external) Cable length matters — too short won't reach, too long creates clutter
Verify connector type on BOTH ends — many SAS cables are asymmetric
PRODUCT OVERVIEW

The HEATER,THERMAL RELEASE is a the manufacturer industrial component. Key specifications include depth: 20.000 INCHES NOMINAL IN, phase: SINGLE, width: 12.000 INCHES NOMINAL IN, length: 18.000 INCHES NOMINAL IN, body_style: UNSHIELDED, THREADED POST, GASKET SEAT, temp_rating: 100.0 CELSIUS MINIMUM AND 600.0 CELSIUS MAXIMUM DEGC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5999-00-499-7441, 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
W18
NSN: 5999-00-499-7441
FSC: 5999
CAGE: 63743 — WARD LEONARD CT LLC (USA)
SPECIFICATIONS
depth20.000 INCHES NOMINAL IN
phaseSINGLE
width12.000 INCHES NOMINAL IN
length18.000 INCHES NOMINAL IN
body_styleUNSHIELDED, THREADED POST, GASKET SEAT
temp_rating100.0 CELSIUS MINIMUM AND 600.0 CELSIUS MAXIMUM DEGC
current_typeAC
reach_length0.625 INCHES NOMINAL IN
usage_designENGINE OTHER THAN AIRCRAFT
hole_diameter3.582 INCHES MINIMUM AND 3.612 INCHES MAXIMUM IN
mounting_typeCASTER
overall_width0.625 INCHES NOMINAL IN
NSN5999-00-499-7441
COMPONENT DIAGRAM
CONN A SFF-8482 CONN B SFF-8087 LENGTH: SAS CABLE ASSEMBLY | SFF-8482 to SFF-8087 Cable length: | SAS | Shielded TITLE CABLE ASSY PN W18 MFR HEATER,THERMAL RELEASE
KEY FEATURES
•
MOUNTING FACILITY TYPE AND QUANTITY: 2 UNTHREADED HOLE(S)
•
MOUNTING HOLE DIAMETER: 0.188 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING FACILITY TYPE AND QUANTITY2 UNTHREADED HOLE(S)
OVERALL LENGTH1.937 INCHES NOMINAL IN
OVERALL WIDTH0.625 INCHES NOMINAL IN
OVERALL HEIGHT0.750 INCHES NOMINAL IN
MOUNTING HOLE DIAMETER0.188 INCHES NOMINAL IN
MOUNTING FACILITY TYPE AND QUANTITY2 UNTHREADED HOLE(S)
OVERALL LENGTH1.937 INCHES NOMINAL IN
OVERALL WIDTH0.625 INCHES NOMINAL IN
OVERALL HEIGHT0.750 INCHES NOMINAL IN
MOUNTING HOLE DIAMETER0.188 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
13388-FInterchangeable
interchangeable cross-reference
interchangeable
09-20048Interchangeable
interchangeable cross-reference
interchangeable
HR22311Interchangeable
interchangeable cross-reference
interchangeable
W-18Interchangeable
interchangeable cross-reference
interchangeable
MIL-T-13291TY1CLCInterchangeable
interchangeable cross-reference
interchangeable
10-20Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is W18?
W18 is a HEATER,THERMAL RELEASE.
What parts can replace W18?
There are 9 known substitutes for W18: 13388-F, 09-20048, HR22311 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for W18?
W18 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5999-00-499-7441. 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