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9004-730 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

9004-730: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.075 INCHES NOMINAL IN, overall_diameter: 4.250 INCHES NOMINAL IN, surface_treatment: CADMIUM OVERALL, end_item_identification: GROUND SUPPORT EQUIPMENT AV-8 AIRCRAFT. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-335-6458, 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
9004-730
NSN: 5310-01-335-6458
FSC: 5310 — Nuts and Washers
CAGE: 00994 — COLUMBUS JACK CORPORATION DIV COLUMBUS JACK (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.075 INCHES NOMINAL IN
overall_diameter4.250 INCHES NOMINAL IN
surface_treatmentCADMIUM OVERALL
end_item_identificationGROUND SUPPORT EQUIPMENT AV-8 AIRCRAFT
NSN5310-01-335-6458
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 9004-730 · 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: 4.250 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL OVERALL
•
THICKNESS: 0.075 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER4.250 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
END ITEM IDENTIFICATIONGROUND SUPPORT EQUIPMENT AV-8 AIRCRAFT
MATERIALSTEEL OVERALL
THICKNESS0.075 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9004-730?
9004-730 is a WASHER,FLAT.
What is the NSN for 9004-730?
9004-730 is cataloged in the U.S. Government catalog under NSN 5310-01-335-6458. 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.