PartsTable
Technical Data Sheet
M63431 ✓ 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

NUT,PLAIN,SINGLE BALL SEAT,HEXAG. Key specifications include material: STEEL OVERALL, nut_style: SINGLE BALL SEAT, HEXAGON, nut_height: 0.219 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC), special_features: HOLE LOCATED IN CENTER OF HEXAGON OUTSIDE DIAMETER 0.125. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-352-2750, 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
M63431
NSN: 5310-01-352-2750
FSC: 5310
CAGE: 75755 — DEERE & COMPANY DBA DEERE JOHN CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleSINGLE BALL SEAT, HEXAGON
nut_height0.219 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
special_featuresHOLE LOCATED IN CENTER OF HEXAGON OUTSIDE DIAMETER 0.125
thread_directionRIGHT-HAND
surface_treatmentZINC OR CADMIUM OVERALL
width_across_flats0.336 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
nominal_thread_size0.164 INCHES IN
thread_quantity_per_inch32
NSN5310-01-352-2750
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: M63431 · 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
SURFACE TREATMENT: ZINC OR CADMIUM OVERALL
NOMINAL THREAD SIZE: 0.164 INCHES IN
THREAD QUANTITY PER INCH: 32
NUT HEIGHT: 0.219 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN
WIDTH ACROSS FLATS: 0.336 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTZINC OR CADMIUM OVERALL
NOMINAL THREAD SIZE0.164 INCHES IN
THREAD QUANTITY PER INCH32
SPECIAL FEATURESHOLE LOCATED IN CENTER OF HEXAGON OUTSIDE DIAMETER 0.125
NUT HEIGHT0.219 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.336 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIALSTEEL OVERALL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
L291562-23Interchangeable
interchangeable cross-reference
interchangeable
MR36W003ACAARInterchangeable
interchangeable cross-reference
interchangeable
196007Interchangeable
interchangeable cross-reference
interchangeable
114011Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M63431?
M63431 is a NUT,PLAIN,SINGLE BALL SEAT,HEXAG.
What parts can replace M63431?
There are 4 known substitutes for M63431: L291562-23, MR36W003ACAAR, 196007 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M63431?
M63431 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-352-2750. This indicates validated use in U.S. government and defense supply chains.
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