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F5P2 ✓ 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

NUT,PLAIN,EXTENDED WASHER,HEXAGO. Key specifications include material: STEEL OVERALL, thread_class: 2A A, thread_series: UNIFIED NATIONAL COARSE (UNC), thread_direction: RIGHT-HAND, surface_treatment: ZINC OVERALL, nominal_thread_size: 0.312 INCHES IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-598-7463, 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
F5P2
NSN: 5310-01-598-7463
FSC: 5310
CAGE: 1SE17 — ENDRIES INTERNATIONAL, INC. DBA SERVTONICS, AN ENDRIES INTERNATIONAL, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class2A A
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
nominal_thread_size0.312 INCHES IN
end_item_identificationTRACTOR,WHEELED,AIRCRAFT TOWING
thread_quantity_per_inch18
part_name_assigned_by_controlling_agencyHEX FLANGE NUT ZINC
NSN5310-01-598-7463
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: F5P2 · 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 SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD CLASS: 2A A
•
THREAD QUANTITY PER INCH: 18
•
THREAD DIRECTION: RIGHT-HAND
•
SURFACE TREATMENT: ZINC OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.312 INCHES IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD CLASS2A A
THREAD QUANTITY PER INCH18
END ITEM IDENTIFICATIONTRACTOR,WHEELED,AIRCRAFT TOWING
PART NAME ASSIGNED BY CONTROLLING AGENCYHEX FLANGE NUT ZINC
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTZINC OVERALL
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
49234Interchangeable
interchangeable cross-reference
interchangeable
49067AInterchangeable
interchangeable cross-reference
interchangeable
ES0696429-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is F5P2?
F5P2 is a NUT,PLAIN,EXTENDED WASHER,HEXAGO.
What parts can replace F5P2?
There are 3 known substitutes for F5P2: 49234, 49067A, ES0696429-1. Substitute compatibility should be verified for your specific system.
What is the NSN for F5P2?
F5P2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-598-7463. 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