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M45913/4-12CG8C — Technical Data Sheet

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— · 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 NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_height: 0.722 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC), locking_feature: PREVAILING TORQUE ALL METAL DESIGN, special_features: GRADE 8. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5310-01-535-8822, 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
M45913/4-12CG8C
NSN: 5310-01-535-8822
FSC: 5310
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL OVERALL
nut_height0.722 INCHES NOMINAL IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE ALL METAL DESIGN
special_featuresGRADE 8
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats1.108 INCHES NOMINAL IN
nominal_thread_size0.750 INCHES IN
bearing_surface_typeFLAT
end_item_identification1 1/4 TON TRUCK VEHICLE SYSTEM (HMMWV)
NSN5310-01-535-8822
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: M45913/4-12CG8C · 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
•
BEARING SURFACE TYPE: FLAT
•
THREAD DIRECTION: RIGHT-HAND
•
NUT HEIGHT: 0.722 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL OVERALL
•
THREAD QUANTITY PER INCH: 10
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
TECHNICAL CHARACTERISTICS
BEARING SURFACE TYPEFLAT
THREAD DIRECTIONRIGHT-HAND
NUT HEIGHT0.722 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL OVERALL
THREAD QUANTITY PER INCH10
NOMINAL THREAD SIZE0.750 INCHES IN
SPECIAL FEATURESGRADE 8
WIDTH ACROSS FLATS1.108 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
MS51943-4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5310PL0918864InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
M45913/3-5FG8PInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MIL-DTL-45913InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MS51943-57InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
M45913/3-24FG8CInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M45913/4-12CG8C?
M45913/4-12CG8C is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace M45913/4-12CG8C?
There are 21 known substitutes for M45913/4-12CG8C: MS51943-4, 5310PL0918864, M45913/3-5FG8P and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M45913/4-12CG8C?
M45913/4-12CG8C is cataloged in the Federal Logistics Information System under NSN 5310-01-535-8822. 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: October 2026