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Technical Data Sheet
PartsTable / COMPONENT / 359783C1
359783C1 ✓ 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 product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-556-6217, 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
359783C1
NSN: 5310-01-556-6217
FSC: 5310
CAGE: 03KT1 — ANIXTER (USA)
SPECIFICATIONS
Part Number359783C1
NSN5310-01-556-6217
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 359783C1 · 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 18
374343Interchangeable
interchangeable cross-reference
interchangeable
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
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 359783C1?
359783C1 is a NUT,SELF-LOCKING,CONE SEAT,HEXAG.
What parts can replace 359783C1?
There are 18 known substitutes for 359783C1: 374343, ESP-E-56.121-PP, 9413979 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 359783C1?
359783C1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-556-6217. 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