PartsTable
Technical Data Sheet
M1222N1X16C20NANN ✓ 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 5310-01-479-4839, 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
M1222N1X16C20NANN
NSN: 5310-01-479-4839
FSC: 5310
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM1222N1X16C20NANN
NSN5310-01-479-4839
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: M1222N1X16C20NANN · 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 11
2640-682-10 ITEM 32Interchangeable
interchangeable cross-reference
interchangeable
6690372Interchangeable
interchangeable cross-reference
interchangeable
845-6690372 ITEM 32Interchangeable
interchangeable cross-reference
interchangeable
2640-682-10 ITEM 40Interchangeable
interchangeable cross-reference
interchangeable
845-6690372 ITEM 40Interchangeable
interchangeable cross-reference
interchangeable
2640-682-10 ITEM 45Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M1222N1X16C20NANN?
M1222N1X16C20NANN is a NUT,PLAIN,HEXAGON.
What parts can replace M1222N1X16C20NANN?
There are 11 known substitutes for M1222N1X16C20NANN: 2640-682-10 ITEM 32, 6690372, 845-6690372 ITEM 32 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M1222N1X16C20NANN?
M1222N1X16C20NANN is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-479-4839. This indicates validated use in U.S. government and defense supply chains.
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