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Technical Data Sheet
PartsTable / MRO / W56
W56 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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 W56 is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, lens_type: CONVEX, KNURLED SINGLE LIGHT FIRST POSITION HORIZONTAL, case_style: SQUARE, lens_color: RED SINGLE LIGHT FIRST POSITION HORIZONTAL, seal_width: 0.312 INCHES NOMINAL IN, overall_height: 0.375 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5999-00-787-6729, 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→ W56
NSN: 5999-00-787-6729
FSC: 5999
CAGE: 63743 — WARD LEONARD CT LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
lens_typeCONVEX, KNURLED SINGLE LIGHT FIRST POSITION HORIZONTAL
case_styleSQUARE
lens_colorRED SINGLE LIGHT FIRST POSITION HORIZONTAL
seal_width0.312 INCHES NOMINAL IN
lens_quantity1
overall_height0.375 INCHES NOMINAL IN
overall_length3.062 INCHES MAXIMUM IN
mounting_methodSCREW ON LENS
overall_diameter1.141 INCHES NOMINAL IN
special_featuresBI-METALLIC ELEMENT;HEATER COIL AMPERE RATING 12.8 AMPS MINUMUM,16.8 AMPS MAXIMUM
style_designatorROUND FRAME, ROUND LENS TYPE
NSN5999-00-787-6729
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 W56 MFR W56
KEY FEATURES
•
MOUNTING FACILITY TYPE AND QUANTITY: 1 UNTHREADED HOLE(S)
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH0.937 INCHES NOMINAL IN
OVERALL HEIGHT0.375 INCHES NOMINAL IN
MOUNTING FACILITY TYPE AND QUANTITY1 UNTHREADED HOLE(S)
OVERALL LENGTH0.937 INCHES NOMINAL IN
OVERALL HEIGHT0.375 INCHES NOMINAL IN
MOUNTING FACILITY TYPE AND QUANTITY1 UNTHREADED HOLE(S)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
58712Interchangeable
interchangeable cross-reference
interchangeable
W56Interchangeable
interchangeable cross-reference
interchangeable
818365-00Interchangeable
interchangeable cross-reference
interchangeable
42021Interchangeable
interchangeable cross-reference
interchangeable
42021-3-01Interchangeable
interchangeable cross-reference
interchangeable
21-2-42021Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is W56?
W56 is a W56. It is classified as a MRO (MRO_GENERAL).
What parts can replace W56?
There are 15 known substitutes for W56: 58712, W56, 818365-00 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for W56?
W56 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5999-00-787-6729. 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