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PartsTable / COMPONENT / 4033259031
4033259031 ✓ 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 color: BLACK OVERALL, material: STEEL OVERALL, thickness: 0.108 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN, hole_diameter: 0.931 INCHES MINIMUM AND 0.968 INCHES MAXIMUM IN, overall_diameter: 1.743 INCHES MINIMUM AND 1.780 INCHES MAXIMUM IN, surface_treatment: PHOSPHATE AND ZINC OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-658-7411, 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
4033259031
NSN: 5310-01-658-7411
FSC: 5310
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
colorBLACK OVERALL
materialSTEEL OVERALL
thickness0.108 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
hole_diameter0.931 INCHES MINIMUM AND 0.968 INCHES MAXIMUM IN
overall_diameter1.743 INCHES MINIMUM AND 1.780 INCHES MAXIMUM IN
surface_treatmentPHOSPHATE AND ZINC OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identificationMRAP - M-ATV
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationASTM F436 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-658-7411
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4033259031 · 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: STEEL OVERALL
•
COLOR: BLACK OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM F436 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL
•
OVERALL DIAMETER: 1.743 INCHES MINIMUM AND 1.780 INCHES MAXIMUM IN
•
PERIPHERAL SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.931 INCHES MINIMUM AND 0.968 INCHES MAXIMUM IN
•
THICKNESS: 0.108 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
•
CENTER HOLE SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
COLORBLACK OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM F436 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL DIAMETER1.743 INCHES MINIMUM AND 1.780 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLEROUND
HOLE DIAMETER0.931 INCHES MINIMUM AND 0.968 INCHES MAXIMUM IN
THICKNESS0.108 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLEROUND
END ITEM IDENTIFICATIONMRAP - M-ATV
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
4000317Interchangeable
interchangeable cross-reference
interchangeable
4033259Interchangeable
interchangeable cross-reference
interchangeable
4033259004Interchangeable
interchangeable cross-reference
interchangeable
4033259007Interchangeable
interchangeable cross-reference
interchangeable
4000405Interchangeable
interchangeable cross-reference
interchangeable
4033259002Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4033259031?
4033259031 is a WASHER,FLAT.
What parts can replace 4033259031?
There are 13 known substitutes for 4033259031: 4000317, 4033259, 4033259004 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4033259031?
4033259031 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-658-7411. 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