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4890634 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

4890634: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include nut_style: HEXAGON, thread_direction: RIGHT-HAND, end_item_identification: 4940-01-463-7940 FORWARD REPAIR SYSTEM M7; RG-31 MRAP; MEDIUM MINE PROTECTED VEHICLE - MMPV, part_name_assigned_by_controlling_agency: NUT, REGULAR HEXAGON. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-558-8481, 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
4890634
NSN: 5310-01-558-8481
FSC: 5310 — Nuts and Washers
CAGE: 0B8S3 — CUMMINS INC (USA)
SPECIFICATIONS
nut_styleHEXAGON
thread_directionRIGHT-HAND
end_item_identification4940-01-463-7940 FORWARD REPAIR SYSTEM M7; RG-31 MRAP; MEDIUM MINE PROTECTED VEHICLE - MMPV
part_name_assigned_by_controlling_agencyNUT, REGULAR HEXAGON
NSN5310-01-558-8481
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4890634 · 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
•
THREAD DIRECTION: RIGHT-HAND
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
THREAD DIRECTIONRIGHT-HAND
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT, REGULAR HEXAGON
NUT STYLEHEXAGON
END ITEM IDENTIFICATION4940-01-463-7940 FORWARD REPAIR SYSTEM M7; RG-31 MRAP; MEDIUM MINE PROTECTED VEHICLE - MMPV
SUBSTITUTES & CROSS-REFERENCES 3
123541Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2 0095-078Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
02/911881Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4890634?
4890634 is a NUT,PLAIN,HEXAGON.
What parts can replace 4890634?
There are 3 known substitutes for 4890634: 123541, 2 0095-078, 02/911881. Substitute compatibility should be verified for your specific system.
What is the NSN for 4890634?
4890634 is cataloged in the U.S. Government catalog under NSN 5310-01-558-8481. 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.