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Technical Data Sheet
PartsTable / COMPONENT / M45913/3-8CG8Z
M45913/3-8CG8Z ✓ 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 M45913/3-8CG8Z is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-501-3086, 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
M45913/3-8CG8Z
NSN: 5310-01-501-3086
FSC: 5310
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM45913/3-8CG8Z
NSN5310-01-501-3086
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: M45913/3-8CG8Z · 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
•
LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT
•
WIDTH ACROSS FLATS: 0.736 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
•
THREAD CLASS: 3B
•
MATERIAL: PLASTIC POLYAMIDE NYLON LOCKING INSERT
•
NOMINAL THREAD SIZE: 0.500 INCHES IN
•
BEARING SURFACE TYPE: FLAT
TECHNICAL CHARACTERISTICS (FLIS)
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
WIDTH ACROSS FLATS0.736 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
THREAD CLASS3B
MATERIALPLASTIC POLYAMIDE NYLON LOCKING INSERT
NOMINAL THREAD SIZE0.500 INCHES IN
BEARING SURFACE TYPEFLAT
MATERIALSTEEL NUT
SURFACE TREATMENTZINC NUT
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J995, GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE NUT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
MIL-DTL-45913/3Interchangeable
interchangeable cross-reference
interchangeable
M45913/3-16FG8CInterchangeable
interchangeable cross-reference
interchangeable
MS51943-50Interchangeable
interchangeable cross-reference
interchangeable
TIP00017Interchangeable
interchangeable cross-reference
interchangeable
L31163Interchangeable
interchangeable cross-reference
interchangeable
456720131110Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M45913/3-8CG8Z?
M45913/3-8CG8Z is a M45913/3-8CG8Z.
What parts can replace M45913/3-8CG8Z?
There are 16 known substitutes for M45913/3-8CG8Z: MIL-DTL-45913/3, M45913/3-16FG8C, MS51943-50 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M45913/3-8CG8Z?
M45913/3-8CG8Z is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-501-3086. 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: July 2026