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Technical Data Sheet
PartsTable / COMPONENT / M45913/5CG5C
M45913/5CG5C ✓ 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 M45913/5CG5C is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-984-3806, 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
M45913/5CG5C
NSN: 5310-00-984-3806
FSC: 5310
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM45913/5CG5C
NSN5310-00-984-3806
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: M45913/5CG5C · 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
•
TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF
•
THREAD QUANTITY PER INCH: 18
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL EXCEPT INSERT
•
NUT HEIGHT: 0.329 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN
•
LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL: STEEL NUT
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
TECHNICAL CHARACTERISTICS (FLIS)
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
THREAD QUANTITY PER INCH18
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL EXCEPT INSERT
NUT HEIGHT0.329 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIALSTEEL NUT
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
NOMINAL THREAD SIZE0.312 INCHES IN
THREAD CLASS2B
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
10322Interchangeable
interchangeable cross-reference
interchangeable
53296Interchangeable
interchangeable cross-reference
interchangeable
532964TKInterchangeable
interchangeable cross-reference
interchangeable
H78CAICInterchangeable
interchangeable cross-reference
interchangeable
MILH26312AInterchangeable
interchangeable cross-reference
interchangeable
N8T380FInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M45913/5CG5C?
M45913/5CG5C is a M45913/5CG5C.
What parts can replace M45913/5CG5C?
There are 24 known substitutes for M45913/5CG5C: 10322, 53296, 532964TK and 21 more. Substitute compatibility should be verified for your specific system.
Is M45913/5CG5C still available?
M45913/5CG5C is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026