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W403 — CABLE ASSEMBLY,SPECIAL PURPOSE,E

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

W403: CABLE ASSEMBLY,SPECIAL PURPOSE,E.

CABLE ASSEMBLY,SPECIAL PURPOSE,E. Key specifications include material: TIN OUTER RING SIDES, thickness: 0.062 INCHES NOMINAL IN, hole_diameter: 0.172 INCHES NOMINAL IN, conductor_form: STRANDED ALL CONDUCTORS, overall_length: 75.000 FEET FT, overall_diameter: 0.438 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-189-0821, 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
W403
NSN: 5310-00-189-0821
NIINs: 001890821, 011999541
FSC: 5310 — Nuts and Washers
CAGE: 31550 — L3HARRIS TECHNOLOGIES, INC. DBA HARRIS CORPORATION (USA)
SPECIFICATIONS
materialTIN OUTER RING SIDES
thickness0.062 INCHES NOMINAL IN
hole_diameter0.172 INCHES NOMINAL IN
conductor_formSTRANDED ALL CONDUCTORS
overall_length75.000 FEET FT
overall_diameter0.438 INCHES NOMINAL IN
style_designatorINTERNAL CONNECTORS
termination_typeCONNECTOR INTERNAL STRAIGHT BOTH ENDS ALL CONDUCTORS
surface_treatmentTIN CORE CONDUCTOR ALL CONDUCTORS
conductor_quantity90
round_conductor_size22 AWG ALL CONDUCTORS
peripheral_shape_styleROUND
NSN5310-00-189-0821
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: W403 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OVERALL DIAMETER: 0.438 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: RUBBER SYNTHETIC OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.172 INCHES NOMINAL IN
•
THICKNESS: 0.062 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.438 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALRUBBER SYNTHETIC OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.172 INCHES NOMINAL IN
THICKNESS0.062 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is W403?
W403 is a CABLE ASSEMBLY,SPECIAL PURPOSE,E.
What is the NSN for W403?
W403 is cataloged in the U.S. Government catalog under NSN 5310-00-189-0821. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.