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PartsTable / COMPONENT / M45938/1-5
M45938/1-5 ✓ 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 M45938/1-5 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-011-7989, 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
M45938/1-5
NSN: 5310-01-011-7989
FSC: 5310
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM45938/1-5
NSN5310-01-011-7989
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: M45938/1-5 · 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
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: CADMIUM OVERALL
•
NUT STYLE: CLINCH
•
PILOT LENGTH: 0.049 INCHES MINIMUM AND 0.054 INCHES MAXIMUM IN
•
HARDNESS RATING: 35.0 ROCKWELL C MAXIMUM
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD QUANTITY PER INCH: 40
TECHNICAL CHARACTERISTICS (FLIS)
NUT DIAMETER0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM OVERALL
NUT STYLECLINCH
PILOT LENGTH0.049 INCHES MINIMUM AND 0.054 INCHES MAXIMUM IN
HARDNESS RATING35.0 ROCKWELL C MAXIMUM
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH40
NOMINAL THREAD SIZE0.112 INCHES IN
PILOT DIAMETER0.161 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
250Interchangeable
interchangeable cross-reference
interchangeable
003930Interchangeable
interchangeable cross-reference
interchangeable
S4402Interchangeable
interchangeable cross-reference
interchangeable
10086007Interchangeable
interchangeable cross-reference
interchangeable
3033953Interchangeable
interchangeable cross-reference
interchangeable
AR12861Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M45938/1-5?
M45938/1-5 is a M45938/1-5.
What parts can replace M45938/1-5?
There are 19 known substitutes for M45938/1-5: 250, 003930, S4402 and 16 more. Substitute compatibility should be verified for your specific system.
Is M45938/1-5 still available?
M45938/1-5 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026