PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 263-055-0440
263-055-0440 ✓ 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,CLINCH is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-425-0402, 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
263-055-0440
NSN: 5310-00-425-0402
FSC: 5310
CAGE: 95542 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
Part Number263-055-0440
NSN5310-00-425-0402
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 263-055-0440 · 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
FE-440Interchangeable
interchangeable cross-reference
interchangeable
Y-1147-2-1Interchangeable
interchangeable cross-reference
interchangeable
10122031Interchangeable
interchangeable cross-reference
interchangeable
201481-11Interchangeable
interchangeable cross-reference
interchangeable
M45938/7-2Interchangeable
interchangeable cross-reference
interchangeable
FE-440-EFInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy 263-055-0440?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 263-055-0440?
263-055-0440 is a NUT,SELF-LOCKING,CLINCH.
What parts can replace 263-055-0440?
There are 17 known substitutes for 263-055-0440: FE-440, Y-1147-2-1, 10122031 and 14 more. Substitute compatibility should be verified for your specific system.
Is 263-055-0440 still available?
263-055-0440 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 263-055-0440

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026