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Technical Data Sheet
PartsTable / COMPONENT / 002-003990-026
002-003990-026 ✓ 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,PLAIN,HEXAGON is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-245-3615, 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
002-003990-026
NSN: 5310-00-245-3615
FSC: 5310
CAGE: 26916 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP DIV MULTIPLE (USA)
SPECIFICATIONS
Part Number002-003990-026
NSN5310-00-245-3615
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 002-003990-026 · 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
E45321Interchangeable
interchangeable cross-reference
interchangeable
E452Interchangeable
interchangeable cross-reference
interchangeable
CE270Interchangeable
interchangeable cross-reference
interchangeable
W886-1Interchangeable
interchangeable cross-reference
interchangeable
F35Interchangeable
interchangeable cross-reference
interchangeable
54035Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 002-003990-026?
002-003990-026 is a NUT,PLAIN,HEXAGON.
What parts can replace 002-003990-026?
There are 18 known substitutes for 002-003990-026: E45321, E452, CE270 and 15 more. Substitute compatibility should be verified for your specific system.
Is 002-003990-026 still available?
002-003990-026 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