PartsTable
Technical Data Sheet
E12156-1818 ✓ 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,SELF-LOCKING,HEXAGON 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 5310-01-175-1023, 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
E12156-1818
NSN: 5310-01-175-1023
FSC: 5310
CAGE: 72962 — HARVARD INDUSTRIES INC (USA)
SPECIFICATIONS
Part NumberE12156-1818
NSN5310-01-175-1023
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: E12156-1818 · 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 9
9520-4Interchangeable
interchangeable cross-reference
interchangeable
1250-0298Interchangeable
interchangeable cross-reference
interchangeable
43667Interchangeable
interchangeable cross-reference
interchangeable
SS-4CP2-DG-10Interchangeable
interchangeable cross-reference
interchangeable
6902-0331Interchangeable
interchangeable cross-reference
interchangeable
285204Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is E12156-1818?
E12156-1818 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace E12156-1818?
There are 9 known substitutes for E12156-1818: 9520-4, 1250-0298, 43667 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for E12156-1818?
E12156-1818 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-175-1023. This indicates validated use in U.S. government and defense supply chains.
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