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3271736 ✓ 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: STEEL OVERALL, thickness: 0.065 INCHES NOMINAL IN, hole_diameter: 0.438 INCHES NOMINAL IN, overall_diameter: 0.970 INCHES NOMINAL IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-479-0620, 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
3271736
NSN: 5310-01-479-0620
FSC: 5310
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.065 INCHES NOMINAL IN
hole_diameter0.438 INCHES NOMINAL IN
overall_diameter0.970 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identification2320-01-465-2174; MRAP M-ATV
cross-sectional_shape_styleRECTANGULAR
NSN5310-01-479-0620
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3271736 · 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
•
CENTER HOLE SHAPE STYLE: ROUND
•
OVERALL DIAMETER: 0.970 INCHES NOMINAL IN
•
THICKNESS: 0.065 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.438 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE SHAPE STYLEROUND
OVERALL DIAMETER0.970 INCHES NOMINAL IN
THICKNESS0.065 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
END ITEM IDENTIFICATION2320-01-465-2174; MRAP M-ATV
HOLE DIAMETER0.438 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
L921-5Interchangeable
interchangeable cross-reference
interchangeable
1421-5Interchangeable
interchangeable cross-reference
interchangeable
921-5Interchangeable
interchangeable cross-reference
interchangeable
924-404X-430ANInterchangeable
interchangeable cross-reference
interchangeable
140-8430-1433-2 01Interchangeable
interchangeable cross-reference
interchangeable
140-8430-1473-201Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3271736?
3271736 is a WASHER,FLAT.
What parts can replace 3271736?
There are 10 known substitutes for 3271736: L921-5, 1421-5, 921-5 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3271736?
3271736 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-479-0620. 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