PartsTable
Technical Data Sheet
50FC624 ✓ 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: 0.442 INCHES MINIMUM AND 0.462 INCHES MAXIMUM IN, temp_rating: 800.0 FAHRENHEIT MAXIMUM DEGF, thread_class: 2B, thread_series: UNF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-194-0839, 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
50FC624
NSN: 5310-00-194-0839
FSC: 5310
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleHEXAGON
nut_height0.442 INCHES MINIMUM AND 0.462 INCHES MAXIMUM IN
temp_rating800.0 FAHRENHEIT MAXIMUM DEGF
thread_class2B
thread_seriesUNF
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
nominal_thread_size0.375 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
NSN5310-00-194-0839
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 50FC624 · 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
TEMP RATING: 800.0 FAHRENHEIT MAXIMUM DEGF
THREAD DIRECTION: RIGHT-HAND
THREAD SERIES: UNF
THREAD CLASS: 2B
NOMINAL THREAD SIZE: 0.375 INCHES IN
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
THREAD QUANTITY PER INCH: 24
WIDTH ACROSS FLATS: 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
TEMP RATING800.0 FAHRENHEIT MAXIMUM DEGF
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNF
THREAD CLASS2B
NOMINAL THREAD SIZE0.375 INCHES IN
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
THREAD QUANTITY PER INCH24
WIDTH ACROSS FLATS0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
MATERIALSTEEL CORROSION RESISTING OVERALL
NUT HEIGHT0.442 INCHES MINIMUM AND 0.462 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
B11211AInterchangeable
interchangeable cross-reference
interchangeable
KC8510Interchangeable
interchangeable cross-reference
interchangeable
98238R93Interchangeable
interchangeable cross-reference
interchangeable
80229Interchangeable
interchangeable cross-reference
interchangeable
3718363-127Interchangeable
interchangeable cross-reference
interchangeable
CA3094AEInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 50FC624?
50FC624 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 50FC624?
There are 10 known substitutes for 50FC624: B11211A, KC8510, 98238R93 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 50FC624?
50FC624 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-194-0839. This indicates validated use in U.S. government and defense supply chains.
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