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PartsTable / COMPONENT / NU45
NU45 ✓ 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,SPECIAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.475 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-912-4693, 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
NU45
NSN: 5310-00-912-4693
FSC: 5310
CAGE: 10695 — TAYLOR-DUNN CORPORATION DBA METRO CROWN INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.475 INCHES NOMINAL IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
width_across_flats0.862 INCHES NOMINAL IN
nominal_thread_size0.500 INCHES IN
bearing_surface_typeFLAT
thread_quantity_per_inch13
NSN5310-00-912-4693
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NU45 · 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
•
NUT STYLE: HEXAGON
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
BEARING SURFACE TYPE: FLAT
•
NOMINAL THREAD SIZE: 0.500 INCHES IN
•
THREAD QUANTITY PER INCH: 13
•
NUT HEIGHT: 0.475 INCHES NOMINAL IN
•
THREAD CLASS: 2B
•
WIDTH ACROSS FLATS: 0.862 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLEHEXAGON
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
BEARING SURFACE TYPEFLAT
NOMINAL THREAD SIZE0.500 INCHES IN
THREAD QUANTITY PER INCH13
NUT HEIGHT0.475 INCHES NOMINAL IN
THREAD CLASS2B
WIDTH ACROSS FLATS0.862 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
31942Interchangeable
interchangeable cross-reference
interchangeable
NU45Interchangeable
interchangeable cross-reference
interchangeable
38583Interchangeable
interchangeable cross-reference
interchangeable
TMD27A602810SInterchangeable
interchangeable cross-reference
interchangeable
J442HInterchangeable
interchangeable cross-reference
interchangeable
C0049235Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NU45?
NU45 is a NUT,SPECIAL.
What parts can replace NU45?
There are 7 known substitutes for NU45: 31942, NU45, 38583 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NU45?
NU45 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-912-4693. 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