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Technical Data Sheet
PartsTable / COMPONENT / M45913/1-9CG5C
M45913/1-9CG5C ✓ 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 M45913/1-9CG5C is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-176-6271, 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
M45913/1-9CG5C
NSN: 5310-00-176-6271
FSC: 5310
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM45913/1-9CG5C
NSN5310-00-176-6271
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: M45913/1-9CG5C · 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 CLASS: 2B
•
NUT HEIGHT: 0.626 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
•
MATERIAL: STEEL NUT
•
BEARING SURFACE FINISH: 125.0 MICROINCHES
•
THREAD QUANTITY PER INCH: 12
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
NOMINAL THREAD SIZE: 0.562 INCHES IN
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B
NUT HEIGHT0.626 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
MATERIALSTEEL NUT
BEARING SURFACE FINISH125.0 MICROINCHES
THREAD QUANTITY PER INCH12
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD SIZE0.562 INCHES IN
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
END ITEM IDENTIFICATIONMRAP BUFFALO MK2A2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
404-3Interchangeable
interchangeable cross-reference
interchangeable
330Interchangeable
interchangeable cross-reference
interchangeable
01550Interchangeable
interchangeable cross-reference
interchangeable
54A50E1Interchangeable
interchangeable cross-reference
interchangeable
10330Interchangeable
interchangeable cross-reference
interchangeable
B75Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M45913/1-9CG5C?
M45913/1-9CG5C is a M45913/1-9CG5C.
What parts can replace M45913/1-9CG5C?
There are 25 known substitutes for M45913/1-9CG5C: 404-3, 330, 01550 and 22 more. Substitute compatibility should be verified for your specific system.
Is M45913/1-9CG5C still available?
M45913/1-9CG5C 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