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Technical Data Sheet
PartsTable / COMPONENT / M45913/1-5FG5C
M45913/1-5FG5C ✓ 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 M45913/1-5FG5C is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-984-3807, 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
M45913/1-5FG5C
NSN: 5310-00-984-3807
FSC: 5310
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM45913/1-5FG5C
NSN5310-00-984-3807
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: M45913/1-5FG5C · 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
•
LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT
•
LUBRICATION: DRY FILM LUBRICANT
•
THREAD SERIES: UNF
•
THREAD QUANTITY PER INCH: 24
•
THREAD CLASS: 2B
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
•
BEARING SURFACE FINISH: 125.0 MICROINCHES
TECHNICAL CHARACTERISTICS (FLIS)
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
LUBRICATIONDRY FILM LUBRICANT
THREAD SERIESUNF
THREAD QUANTITY PER INCH24
THREAD CLASS2B
NOMINAL THREAD SIZE0.312 INCHES IN
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
BEARING SURFACE FINISH125.0 MICROINCHES
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL EXCEPT INSERT
MATERIALSTEEL NUT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
GA50273L11Interchangeable
interchangeable cross-reference
interchangeable
015745Interchangeable
interchangeable cross-reference
interchangeable
503P536Interchangeable
interchangeable cross-reference
interchangeable
26416Interchangeable
interchangeable cross-reference
interchangeable
10323Interchangeable
interchangeable cross-reference
interchangeable
400LXInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M45913/1-5FG5C?
M45913/1-5FG5C is a M45913/1-5FG5C.
What parts can replace M45913/1-5FG5C?
There are 27 known substitutes for M45913/1-5FG5C: GA50273L11, 015745, 503P536 and 24 more. Substitute compatibility should be verified for your specific system.
Is M45913/1-5FG5C still available?
M45913/1-5FG5C 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