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PartsTable / COMPONENT / 7520426
7520426 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: CELLULOSE OVERALL, thickness: 0.062 INCHES NOMINAL IN, hole_diameter: 0.447 INCHES NOMINAL IN, overall_diameter: 0.625 INCHES NOMINAL IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-290-1431, 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
7520426
NSN: 5310-00-290-1431
FSC: 5310
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialCELLULOSE OVERALL
thickness0.062 INCHES NOMINAL IN
hole_diameter0.447 INCHES NOMINAL IN
overall_diameter0.625 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
minimum_tensile_strength6000 POUNDS PER SQUARE INCH LBS
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationMIL-G-12803,NO. 3200-A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-290-1431
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7520426 · 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
•
MATERIAL: CELLULOSE OVERALL
•
THICKNESS: 0.062 INCHES NOMINAL IN
•
OVERALL DIAMETER: 0.625 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.447 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
CENTER HOLE SHAPE STYLE: ROUND
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-12803,NO. 3200-A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCELLULOSE OVERALL
THICKNESS0.062 INCHES NOMINAL IN
OVERALL DIAMETER0.625 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND
HOLE DIAMETER0.447 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
CENTER HOLE SHAPE STYLEROUND
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-12803,NO. 3200-A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MINIMUM TENSILE STRENGTH6000 POUNDS PER SQUARE INCH LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
A3047Interchangeable
interchangeable cross-reference
interchangeable
400A25HP17Interchangeable
interchangeable cross-reference
interchangeable
451804Interchangeable
interchangeable cross-reference
interchangeable
8166-4-1000AInterchangeable
interchangeable cross-reference
interchangeable
400-345-106Interchangeable
interchangeable cross-reference
interchangeable
AA304-7Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7520426?
7520426 is a WASHER,FLAT.
What parts can replace 7520426?
There are 6 known substitutes for 7520426: A3047, 400A25HP17, 451804 and 3 more. Substitute compatibility should be verified for your specific system.
Is 7520426 still available?
7520426 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