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PartsTable / COMPONENT / 410999
410999 ✓ Verified by PartsTable
Legrand · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

Conform to IEC 61009-1, IEC 62423 (F type)<br>Compatible with prong-type and fork type supply busbars<br>Voltage independent tripping<br>Breaking capacity:<br>6000 - IEC 61009-1 - 10 kA / IEC 60947-2 for single pole + neutral, 2 and 4-pole<br>AC type : detect AC component faults<br>A type : detect AC and DC component faults<br>F type (High immunity) : detect AC and pulsating DC residual currents<br>Enhanced immunity to unwanted tripping in disturbed environments<br>Detection of high frequency fault currents<br>Can be equipped with DX³ signalling and remote tripping auxiliaries and motorised controls This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-482-4416, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
410999
NSN: 5306-00-482-4416
FSC: 5306
CAGE: 79550 — ELECTRO-WIRE PRODUCTS INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class1A A
thread_length5.000 INCHES MINIMUM IN
style_designatorACUTE ANGLE BEND
thread_directionRIGHT-HAND
hook_inside_width0.750 INCHES NOMINAL IN
surface_treatmentZINC OVERALL
nominal_thread_diameter0.312 INCHES IN
thread_quantity_per_inch18
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
distance_from_inside_of_bend_to_shank_end10.000 INCHES NOMINAL10.000 INCHES NOMINAL IN
distance_from_inside_center_of_bend_to_hook_end0.797 INCHES NOMINAL IN
NSN5306-00-482-4416
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 410999 · Legrand ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD LENGTH: 5.000 INCHES MINIMUM IN
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: ZINC OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
STYLE DESIGNATOR: ACUTE ANGLE BEND
•
DISTANCE FROM INSIDE CENTER OF BEND TO HOOK END: 0.797 INCHES NOMINAL IN
•
THREAD CLASS: 1A A
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH5.000 INCHES MINIMUM IN
MATERIALSTEEL OVERALL
SURFACE TREATMENTZINC OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
STYLE DESIGNATORACUTE ANGLE BEND
DISTANCE FROM INSIDE CENTER OF BEND TO HOOK END0.797 INCHES NOMINAL IN
THREAD CLASS1A A
DISTANCE FROM INSIDE OF BEND TO SHANK END10.000 INCHES NOMINAL10.000 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.312 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
3226Upgraded Successor
successor cross-reference
successor
03226Interchangeable
interchangeable cross-reference
interchangeable
003226Interchangeable
interchangeable cross-reference
interchangeable
200413178-01Interchangeable
interchangeable cross-reference
interchangeable
49248Interchangeable
interchangeable cross-reference
interchangeable
270AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 410999?
410999 is a BOLT,HOOK manufactured by Legrand.
What parts can replace 410999?
There are 10 known substitutes for 410999: 3226, 03226, 003226 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 410999?
410999 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-482-4416. 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