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PartsTable / COMPONENT / MIL-DTL-45913/3A-M45913/3-12CG8
MIL-DTL-45913/3A-M45913/3-12CG8 ✓ 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 MIL-DTL-45913/3A-M45913/3-12CG8 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-409-3333, 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
MIL-DTL-45913/3A-M45913/3-12CG8
NSN: 5310-00-409-3333
FSC: 5310
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberMIL-DTL-45913/3A-M45913/3-12CG8
NSN5310-00-409-3333
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MIL-DTL-45913/3A-M45913/3-12CG8 · 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
•
MATERIAL: PLASTIC POLYAMIDE NYLON LOCKING INSERT
•
LUBRICATION: DRY FILM LUBRICANT
•
NUT HEIGHT: 0.890 INCHES MAXIMUM IN
•
THREAD QUANTITY PER INCH: 10
•
BEARING SURFACE FINISH: 110.0 MICROINCHES
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALPLASTIC POLYAMIDE NYLON LOCKING INSERT
LUBRICATIONDRY FILM LUBRICANT
NUT HEIGHT0.890 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH10
BEARING SURFACE FINISH110.0 MICROINCHES
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
NOMINAL THREAD SIZE0.750 INCHES IN
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT
WIDTH ACROSS FLATS1.088 INCHES MINIMUM AND 1.127 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
5310PL0773984Interchangeable
interchangeable cross-reference
interchangeable
MS51943-34Interchangeable
interchangeable cross-reference
interchangeable
71143-34Interchangeable
interchangeable cross-reference
interchangeable
M45913/3-7FG8PInterchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-45913/3AInterchangeable
interchangeable cross-reference
interchangeable
MS51943-8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-DTL-45913/3A-M45913/3-12CG8?
MIL-DTL-45913/3A-M45913/3-12CG8 is a MIL-DTL-45913/3A-M45913/3-12CG8.
What parts can replace MIL-DTL-45913/3A-M45913/3-12CG8?
There are 19 known substitutes for MIL-DTL-45913/3A-M45913/3-12CG8: 5310PL0773984, MS51943-34, 71143-34 and 16 more. Substitute compatibility should be verified for your specific system.
Is MIL-DTL-45913/3A-M45913/3-12CG8 still available?
MIL-DTL-45913/3A-M45913/3-12CG8 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: July 2026