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PartsTable / COMPONENT / H10-624
H10-624 ✓ 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_height: 0.282 INCHES NOMINAL IN, temp_rating: 550.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNF, locking_feature: PREVAILING TORQUE ALL METAL DESIGN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-616-5998, 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
H10-624
NSN: 5310-00-616-5998
FSC: 5310
CAGE: 75237 — HOWMET GLOBAL FASTENING SYSTEMS INC. DIV MICRODOT PRODUCTS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_height0.282 INCHES NOMINAL IN
temp_rating550.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNF
locking_featurePREVAILING TORQUE ALL METAL DESIGN
special_featuresUPPER THREADED PORTION DEFORMED ELLIPTICALLY TO PRODUCE SELF LOCKING ACTION
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats0.563 INCHES NOMINAL IN
nominal_thread_size0.375 INCHES IN
thread_quantity_per_inch24
NSN5310-00-616-5998
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: H10-624 · 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
•
NONDEFINITIVE SPEC/STD DATA: 550 DEG F TYPE DEGF
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: CADMIUM OVERALL
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
NUT HEIGHT: 0.282 INCHES NOMINAL IN
•
THREAD CLASS: 3B
•
THREAD SERIES: UNF
TECHNICAL CHARACTERISTICS (FLIS)
NONDEFINITIVE SPEC/STD DATA550 DEG F TYPE DEGF
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM OVERALL
NOMINAL THREAD SIZE0.375 INCHES IN
NUT HEIGHT0.282 INCHES NOMINAL IN
SPECIAL FEATURESUPPER THREADED PORTION DEFORMED ELLIPTICALLY TO PRODUCE SELF LOCKING ACTION
THREAD CLASS3B
THREAD SERIESUNF
WIDTH ACROSS FLATS0.563 INCHES NOMINAL IN
SPECIFICATION/STANDARD DATA26512-GN10U MANUFACTURERS STANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
H106Interchangeable
interchangeable cross-reference
interchangeable
1509/FC163-6Interchangeable
interchangeable cross-reference
interchangeable
H25-3-8Interchangeable
interchangeable cross-reference
interchangeable
660E0023Interchangeable
interchangeable cross-reference
interchangeable
660Z0042Interchangeable
interchangeable cross-reference
interchangeable
8528832Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H10-624?
H10-624 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace H10-624?
There are 14 known substitutes for H10-624: H106, 1509/FC163-6, H25-3-8 and 11 more. Substitute compatibility should be verified for your specific system.
Is H10-624 still available?
H10-624 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026