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PartsTable / COMPONENT / M45938-1-4
M45938-1-4 ✓ 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,PLAIN,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: CLINCH, nut_height: 0.080 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN, nut_diameter: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN, pilot_length: 0.033 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN, thread_class: 2B. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-522-7551, 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
M45938-1-4
NSN: 5310-01-522-7551
FSC: 5310
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleCLINCH
nut_height0.080 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
nut_diameter0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
pilot_length0.033 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.162 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN
hardness_rating70.0 ROCKWELL B NOMINAL
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.112 INCHES IN
NSN5310-01-522-7551
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: M45938-1-4 · 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 DIAMETER: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
HARDNESS RATING: 70.0 ROCKWELL B NOMINAL
•
NOMINAL THREAD SIZE: 0.112 INCHES IN
•
THREAD QUANTITY PER INCH: 40
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
PILOT DIAMETER: 0.162 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
NUT DIAMETER0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
HARDNESS RATING70.0 ROCKWELL B NOMINAL
NOMINAL THREAD SIZE0.112 INCHES IN
THREAD QUANTITY PER INCH40
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
PILOT DIAMETER0.162 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN
NUT STYLECLINCH
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
PEMCLS632-2Interchangeable
interchangeable cross-reference
interchangeable
10001-8Interchangeable
interchangeable cross-reference
interchangeable
322621-27Interchangeable
interchangeable cross-reference
interchangeable
MIL-N-45938/1Interchangeable
interchangeable cross-reference
interchangeable
M45938/1-1Interchangeable
interchangeable cross-reference
interchangeable
NASM45938/1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M45938-1-4?
M45938-1-4 is a NUT,PLAIN,CLINCH.
What parts can replace M45938-1-4?
There are 9 known substitutes for M45938-1-4: PEMCLS632-2, 10001-8, 322621-27 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M45938-1-4?
M45938-1-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-522-7551. 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