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Technical Data Sheet
PartsTable / COMPONENT / 12387349-33
12387349-33 ✓ 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,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, thread_direction: RIGHT-HAND, nominal_thread_size: 0.312 INCHES IN, end_item_identification: 2350-01-087-1095, TANK, COMBAT, FULL TRACKED, thread_quantity_per_inch: 18. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-545-3173, 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
12387349-33
NSN: 5310-01-545-3173
FSC: 5310
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
thread_directionRIGHT-HAND
nominal_thread_size0.312 INCHES IN
end_item_identification2350-01-087-1095, TANK, COMBAT, FULL TRACKED
thread_quantity_per_inch18
NSN5310-01-545-3173
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12387349-33 · 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: 0.312 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
MATERIAL: STEEL OVERALL
•
NUT STYLE: HEXAGON
•
THREAD QUANTITY PER INCH: 18
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.312 INCHES IN
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
NUT STYLEHEXAGON
THREAD QUANTITY PER INCH18
END ITEM IDENTIFICATION2350-01-087-1095, TANK, COMBAT, FULL TRACKED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
MIL-DTL-45913/3Interchangeable
interchangeable cross-reference
interchangeable
M45913/3-16FG8CInterchangeable
interchangeable cross-reference
interchangeable
MS51943-50Interchangeable
interchangeable cross-reference
interchangeable
TIP00017Interchangeable
interchangeable cross-reference
interchangeable
L31163Interchangeable
interchangeable cross-reference
interchangeable
456720131110Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12387349-33?
12387349-33 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 12387349-33?
There are 16 known substitutes for 12387349-33: MIL-DTL-45913/3, M45913/3-16FG8C, MS51943-50 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12387349-33?
12387349-33 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-545-3173. 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