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PartsTable / COMPONENT / F-8278 PC3
F-8278 PC3 ✓ 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. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.328 INCHES NOMINAL 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 5310-00-008-7892, 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
F-8278 PC3
NSN: 5310-00-008-7892
FSC: 5310
CAGE: 82328 — DRESSER RAND CO TERRY CORP STEAM TURBINE MOTOR AND GENERATOR CO A JOINT VENTURE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.328 INCHES NOMINAL IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats0.562 INCHES NOMINAL IN
nominal_thread_size0.357 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch16
NSN5310-00-008-7892
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: F-8278 PC3 · 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 CLASS: 2B
•
WIDTH ACROSS FLATS: 0.562 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD QUANTITY PER INCH: 16
•
NOMINAL THREAD SIZE: 0.357 INCHES IN
•
BEARING SURFACE TYPE: CHAMFERED
•
SURFACE TREATMENT: CADMIUM OVERALL
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B
WIDTH ACROSS FLATS0.562 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH16
NOMINAL THREAD SIZE0.357 INCHES IN
BEARING SURFACE TYPECHAMFERED
SURFACE TREATMENTCADMIUM OVERALL
NUT STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
02502Interchangeable
interchangeable cross-reference
interchangeable
24500007Interchangeable
interchangeable cross-reference
interchangeable
307-0106-00Interchangeable
interchangeable cross-reference
interchangeable
121300-0037Interchangeable
interchangeable cross-reference
interchangeable
2887314-06Interchangeable
interchangeable cross-reference
interchangeable
325-21-001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is F-8278 PC3?
F-8278 PC3 is a NUT,PLAIN,HEXAGON.
What parts can replace F-8278 PC3?
There are 19 known substitutes for F-8278 PC3: 02502, 24500007, 307-0106-00 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for F-8278 PC3?
F-8278 PC3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-008-7892. 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