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Technical Data Sheet
PartsTable / COMPONENT / 9413983
9413983 ✓ 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

NUT,SELF-LOCKING,CONE SEAT,HEXAG. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-566-8827, 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
9413983
NSN: 5310-01-566-8827
FSC: 5310
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
Part Number9413983
NSN5310-01-566-8827
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 9413983 · 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 17
ESP-E-56.121-PPInterchangeable
interchangeable cross-reference
interchangeable
9413979Interchangeable
interchangeable cross-reference
interchangeable
26110R1Interchangeable
interchangeable cross-reference
interchangeable
10KP501Interchangeable
interchangeable cross-reference
interchangeable
12759-00102Interchangeable
interchangeable cross-reference
interchangeable
9413999Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9413983?
9413983 is a NUT,SELF-LOCKING,CONE SEAT,HEXAG.
What parts can replace 9413983?
There are 17 known substitutes for 9413983: ESP-E-56.121-PP, 9413979, 26110R1 and 14 more. Substitute compatibility should be verified for your specific system.
Is 9413983 still available?
9413983 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