PartsTable
Technical Data Sheet
3318856 ✓ 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 CORROSION RESISTING OVERALL, nut_style: HEXAGON, nut_height: 0.427 INCHES MINIMUM AND 0.573 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-602-9924, 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
3318856
NSN: 5310-01-602-9924
FSC: 5310
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleHEXAGON
nut_height0.427 INCHES MINIMUM AND 0.573 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.736 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
nominal_thread_size0.500 INCHES IN
end_item_identification2320-01-564-6882 TRUCK TRACTOR
thread_quantity_per_inch13
part_name_assigned_by_controlling_agencyTOP LOCK NUT
NSN5310-01-602-9924
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3318856 · 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
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS: 0.736 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
NOMINAL THREAD SIZE: 0.500 INCHES IN
THREAD QUANTITY PER INCH: 13
THREAD DIRECTION: RIGHT-HAND
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATION2320-01-564-6882 TRUCK TRACTOR
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS0.736 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
NOMINAL THREAD SIZE0.500 INCHES IN
THREAD QUANTITY PER INCH13
PART NAME ASSIGNED BY CONTROLLING AGENCYTOP LOCK NUT
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2B
NUT HEIGHT0.427 INCHES MINIMUM AND 0.573 INCHES MAXIMUM IN
NUT STYLEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
S7Interchangeable
interchangeable cross-reference
interchangeable
GGG-W-00649 TY2CL2Interchangeable
interchangeable cross-reference
interchangeable
8RInterchangeable
interchangeable cross-reference
interchangeable
70800Interchangeable
interchangeable cross-reference
interchangeable
19824Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3318856?
3318856 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 3318856?
There are 5 known substitutes for 3318856: S7, GGG-W-00649 TY2CL2, 8R and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3318856?
3318856 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-602-9924. This indicates validated use in U.S. government and defense supply chains.
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