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E12379 ✓ 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 NUT,PLAIN,HEXAGON is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-334-9550, 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
E12379
NSN: 5310-01-334-9550
FSC: 5310
CAGE: Z0944 — HITACHI CONSTRUCTION MACHINERY AUST AUSTRALIA PTY LTD HITACHI CONSTRUCTION MACHINERY (AUS)
SPECIFICATIONS
Part NumberE12379
NSN5310-01-334-9550
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: E12379 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
120 55/64Interchangeable
interchangeable cross-reference
interchangeable
2411 55/64Interchangeable
interchangeable cross-reference
interchangeable
49755Interchangeable
interchangeable cross-reference
interchangeable
51055Interchangeable
interchangeable cross-reference
interchangeable
MILC17456TYPESMInterchangeable
interchangeable cross-reference
interchangeable
5105Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is E12379?
E12379 is a NUT,PLAIN,HEXAGON.
What parts can replace E12379?
There are 7 known substitutes for E12379: 120 55/64, 2411 55/64, 49755 and 4 more. Substitute compatibility should be verified for your specific system.
Is E12379 still available?
E12379 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