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AC2571 ✓ 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 product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-313-3480, 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
AC2571
NSN: 5310-01-313-3480
FSC: 5310
CAGE: L0782 — ARMATEC SURVIVABILITY CORP DIV ARMATEC SURVIVABILITY (CAN)
SPECIFICATIONS
Part NumberAC2571
NSN5310-01-313-3480
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AC2571 · 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
350-40Interchangeable
interchangeable cross-reference
interchangeable
3626-4Interchangeable
interchangeable cross-reference
interchangeable
124925Interchangeable
interchangeable cross-reference
interchangeable
8130004Interchangeable
interchangeable cross-reference
interchangeable
5310011176260Interchangeable
interchangeable cross-reference
interchangeable
A362-0051Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AC2571?
AC2571 is a NUT,PLAIN,HEXAGON.
What parts can replace AC2571?
There are 8 known substitutes for AC2571: 350-40, 3626-4, 124925 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AC2571?
AC2571 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-313-3480. 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