PartsTable
Technical Data Sheet
N4321 ✓ Verified by PartsTable
Legrand · 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 FLANGE ASY is a Legrand industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.464 INCHES MINIMUM AND 0.504 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), hardness_rating: 103.0 BRINELL STANDARD MINIMUM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-616-2793, 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
N4321
NSN: 5310-00-616-2793
FSC: 5310
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.464 INCHES MINIMUM AND 0.504 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
hardness_rating103.0 BRINELL STANDARD MINIMUM
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats0.850 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
nominal_thread_size0.500 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch13
NSN5310-00-616-2793
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: N4321 · Legrand ⚠ 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
SURFACE TREATMENT: CADMIUM OVERALL
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD SIZE: 0.500 INCHES IN
HARDNESS RATING: 103.0 BRINELL STANDARD MINIMUM
THREAD QUANTITY PER INCH: 13
BEARING SURFACE TYPE: CHAMFERED
WIDTH ACROSS FLATS: 0.850 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTCADMIUM OVERALL
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD SIZE0.500 INCHES IN
HARDNESS RATING103.0 BRINELL STANDARD MINIMUM
THREAD QUANTITY PER INCH13
BEARING SURFACE TYPECHAMFERED
WIDTH ACROSS FLATS0.850 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NUT HEIGHT0.464 INCHES MINIMUM AND 0.504 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
FFN836Interchangeable
interchangeable cross-reference
interchangeable
FFN836GPBTYPE4STYLE3GRADEAInterchangeable
interchangeable cross-reference
interchangeable
485847Interchangeable
interchangeable cross-reference
interchangeable
193227Interchangeable
interchangeable cross-reference
interchangeable
N4321AInterchangeable
interchangeable cross-reference
interchangeable
5-1-1114Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N4321?
N4321 is a FLANGE ASY manufactured by Legrand.
What parts can replace N4321?
There are 7 known substitutes for N4321: FFN836, FFN836GPBTYPE4STYLE3GRADEA, 485847 and 4 more. Substitute compatibility should be verified for your specific system.
Is N4321 still available?
N4321 is currently cancelled.
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