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PartsTable / COMPONENT / MA217-21012
MA217-21012 ✓ 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. Key specifications include thread_series: UNIFIED NATIONAL COARSE (UNC), nominal_thread_size: 0.138 INCHES IN, thread_quantity_per_inch: 32. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-162-6003, 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
MA217-21012
NSN: 5310-01-162-6003
FSC: 5310
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
thread_seriesUNIFIED NATIONAL COARSE (UNC)
nominal_thread_size0.138 INCHES IN
thread_quantity_per_inch32
NSN5310-01-162-6003
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MA217-21012 · 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
KEY FEATURES
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD QUANTITY PER INCH: 32
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.138 INCHES IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH32
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
79016Interchangeable
interchangeable cross-reference
interchangeable
79050Interchangeable
interchangeable cross-reference
interchangeable
1804378Interchangeable
interchangeable cross-reference
interchangeable
713502-1Interchangeable
interchangeable cross-reference
interchangeable
8473-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MA217-21012?
MA217-21012 is a NUT,PLAIN,HEXAGON.
What parts can replace MA217-21012?
There are 5 known substitutes for MA217-21012: 79016, 79050, 1804378 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MA217-21012?
MA217-21012 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-162-6003. 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