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3001186 ✓ 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 WASHER,LOCK is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-549-7765, 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
3001186
NSN: 5310-01-549-7765
FSC: 5310
CAGE: 7W356 — GENERAL DYNAMICS LAND SYSTEMS INC. DIV GDLS GLOBAL LLC (USA)
SPECIFICATIONS
Part Number3001186
NSN5310-01-549-7765
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3001186 · 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 14
40385Interchangeable
interchangeable cross-reference
interchangeable
7047720Interchangeable
interchangeable cross-reference
interchangeable
52610Interchangeable
interchangeable cross-reference
interchangeable
B677Interchangeable
interchangeable cross-reference
interchangeable
42456Interchangeable
interchangeable cross-reference
interchangeable
MIL-S-19500/454Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3001186?
3001186 is a WASHER,LOCK.
What parts can replace 3001186?
There are 14 known substitutes for 3001186: 40385, 7047720, 52610 and 11 more. Substitute compatibility should be verified for your specific system.
Is 3001186 still available?
3001186 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