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PartsTable / COMPONENT / MIL-DTL-1222TYII0.375-16UNC-3AX1
MIL-DTL-1222TYII0.375-16UNC-3AX1 ✓ 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 MIL-DTL-1222TYII0.375-16UNC-3AX1 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 5310-01-670-8272, 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
MIL-DTL-1222TYII0.375-16UNC-3AX1
NSN: 5310-01-670-8272
FSC: 5310
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberMIL-DTL-1222TYII0.375-16UNC-3AX1
NSN5310-01-670-8272
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MIL-DTL-1222TYII0.375-16UNC-3AX1 · 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 21
MIL-DTL-1222 TYPE II GR500L1Interchangeable
interchangeable cross-reference
interchangeable
CD-023-35-9L1Interchangeable
interchangeable cross-reference
interchangeable
801-6404589 FIND 25L1Interchangeable
interchangeable cross-reference
interchangeable
595-6401267 ITEM 114Interchangeable
interchangeable cross-reference
interchangeable
SIZE 0.312-18UNRC-3A X 0.750L1Interchangeable
interchangeable cross-reference
interchangeable
SIZE 0.312-18UNRC-3A X 0.750Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-DTL-1222TYII0.375-16UNC-3AX1?
MIL-DTL-1222TYII0.375-16UNC-3AX1 is a MIL-DTL-1222TYII0.375-16UNC-3AX1.
What parts can replace MIL-DTL-1222TYII0.375-16UNC-3AX1?
There are 21 known substitutes for MIL-DTL-1222TYII0.375-16UNC-3AX1: MIL-DTL-1222 TYPE II GR500L1, CD-023-35-9L1, 801-6404589 FIND 25L1 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-DTL-1222TYII0.375-16UNC-3AX1?
MIL-DTL-1222TYII0.375-16UNC-3AX1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-670-8272. 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