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3995751 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

3995751: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 9.1 INCHES MINIMUM AND 10.0 INCHES MAXIMUM IN, thread_class: 6H, thread_direction: RIGHT-HAND, surface_treatment: PHOSPHATE ZINC OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-643-2162, 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
3995751
NSN: 5310-01-643-2162
NIINs: 016432162, 016478721, 016526285, 016595750
FSC: 5310 — Nuts and Washers
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height9.1 INCHES MINIMUM AND 10.0 INCHES MAXIMUM IN
thread_class6H
thread_seriesM
thread_directionRIGHT-HAND
surface_treatmentPHOSPHATE ZINC OVERALL
width_across_flats29.16 INCHES MINIMUM AND 30.00 INCHES MAXIMUM IN
nominal_thread_size20.0 MILLIMETERS MM
bearing_surface_typeFLAT
end_item_identificationMRAP - M-ATV; 4210-01-622-0440; 2320-01-652-5218 JOINT LIGHT TACTICAL VEHICLE (JLTV)
thread_pitch_in_millimeters2.50
NSN5310-01-643-2162
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3995751 · 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
SUBSTITUTES & CROSS-REFERENCES 1
3995751008Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3995751?
3995751 is a NUT,PLAIN,HEXAGON.
What parts can replace 3995751?
There is 1 known substitute for 3995751: 3995751008. Substitute compatibility should be verified for your specific system.
What is the NSN for 3995751?
3995751 is cataloged in the U.S. Government catalog under NSN 5310-01-643-2162. 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.