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M45938/6-5C — Technical Data Sheet

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— · 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,SELF-LOCKING,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, nut_style: CLINCH, nut_height: 0.147 INCHES MINIMUM AND 0.173 INCHES MAXIMUM IN, temp_rating: 450.0 FAHRENHEIT MAXIMUM DEGF, nut_diameter: 0.224 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN, pilot_length: 0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-127-0884, 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
M45938/6-5C
NSN: 5310-01-127-0884
FSC: 5310
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
nut_styleCLINCH
nut_height0.147 INCHES MINIMUM AND 0.173 INCHES MAXIMUM IN
temp_rating450.0 FAHRENHEIT MAXIMUM DEGF
nut_diameter0.224 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
pilot_length0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.190 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
NSN5310-01-127-0884
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: M45938/6-5C · 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
•
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
•
THREAD QUANTITY PER INCH: 32
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP 303 OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
TEMP RATING: 450.0 FAHRENHEIT MAXIMUM DEGF
TECHNICAL CHARACTERISTICS (FLIS)
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
THREAD QUANTITY PER INCH32
NOMINAL THREAD SIZE0.138 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
TEMP RATING450.0 FAHRENHEIT MAXIMUM DEGF
NUT DIAMETER0.224 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
1752101-3Interchangeable
interchangeable cross-reference
interchangeable
M45938-6-8Interchangeable
interchangeable cross-reference
interchangeable
MILN45938-6Interchangeable
interchangeable cross-reference
interchangeable
1752101-4Interchangeable
interchangeable cross-reference
interchangeable
M45938-6-6Interchangeable
interchangeable cross-reference
interchangeable
200AS106-6B060CRInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M45938/6-5C?
M45938/6-5C is a NUT,SELF-LOCKING,CLINCH.
What parts can replace M45938/6-5C?
There are 20 known substitutes for M45938/6-5C: 1752101-3, M45938-6-8, MILN45938-6 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M45938/6-5C?
M45938/6-5C is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-127-0884. This indicates validated use in U.S. government and defense supply chains.
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Last verified: September 2026