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Technical Data Sheet
PartsTable / COMPONENT / M45913/3-7CG8C
M45913/3-7CG8C ✓ 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 M45913/3-7CG8C is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-241-6659, 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
M45913/3-7CG8C
NSN: 5310-00-241-6659
FSC: 5310
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM45913/3-7CG8C
NSN5310-00-241-6659
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: M45913/3-7CG8C · 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 SERIES: UNIFIED NATIONAL COARSE (UNC)
•
LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT
•
HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
•
NOMINAL THREAD SIZE: 0.437 INCHES IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE NUT
•
WIDTH ACROSS FLATS: 0.0616 INCHES MINIMUM AND 0.0627 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
NOMINAL THREAD SIZE0.437 INCHES IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE NUT
WIDTH ACROSS FLATS0.0616 INCHES MINIMUM AND 0.0627 INCHES MAXIMUM IN
MATERIALSTEEL NUT
NUT HEIGHT0.524 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
G9754PC82Interchangeable
interchangeable cross-reference
interchangeable
C11735-6PC119Interchangeable
interchangeable cross-reference
interchangeable
G9681PC76Interchangeable
interchangeable cross-reference
interchangeable
F52N1610-074UInterchangeable
interchangeable cross-reference
interchangeable
MS17829-7CInterchangeable
interchangeable cross-reference
interchangeable
903536Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M45913/3-7CG8C?
M45913/3-7CG8C is a M45913/3-7CG8C.
What parts can replace M45913/3-7CG8C?
There are 10 known substitutes for M45913/3-7CG8C: G9754PC82, C11735-6PC119, G9681PC76 and 7 more. Substitute compatibility should be verified for your specific system.
Is M45913/3-7CG8C still available?
M45913/3-7CG8C 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