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A6540 ✓ 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 STUD,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: ONE PLATE,ONE SCREW,ONE ACTUATOR BUTTON. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-359-5482, 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
A6540
NSN: 5310-00-359-5482
FSC: 5310
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
general_characteristics_item_descriptionONE PLATE,ONE SCREW,ONE ACTUATOR BUTTON
NSN5310-00-359-5482
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A6540 · 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
14402Interchangeable
interchangeable cross-reference
interchangeable
GGG-T-70Interchangeable
interchangeable cross-reference
interchangeable
C99PPMFWS872Interchangeable
interchangeable cross-reference
interchangeable
FF-B-171/01J29C4XInterchangeable
interchangeable cross-reference
interchangeable
C99PPMFAN011Interchangeable
interchangeable cross-reference
interchangeable
76292Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A6540?
A6540 is a STUD,TURNLOCK FASTENER.
What parts can replace A6540?
There are 14 known substitutes for A6540: 14402, GGG-T-70, C99PPMFWS872 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A6540?
A6540 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-359-5482. 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