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NC403261 ✓ 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 KEY,WOODRUFF 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 5315-01-392-8574, 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
NC403261
NSN: 5315-01-392-8574
FSC: 5315
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
Part NumberNC403261
NSN5315-01-392-8574
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NC403261 · 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 8
40326-1Interchangeable
interchangeable cross-reference
interchangeable
216-46407-1Interchangeable
interchangeable cross-reference
interchangeable
41753-5Interchangeable
interchangeable cross-reference
interchangeable
41321Interchangeable
interchangeable cross-reference
interchangeable
NC403261Interchangeable
interchangeable cross-reference
interchangeable
2498-00-313-6SZ-3.5/4,TY1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NC403261?
NC403261 is a KEY,WOODRUFF.
What parts can replace NC403261?
There are 8 known substitutes for NC403261: 40326-1, 216-46407-1, 41753-5 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NC403261?
NC403261 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-392-8574. 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