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PartsTable / COMPONENT / M45938/11
M45938/11 ✓ 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 M45938/11 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-277-6232, 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
M45938/11
NSN: 5310-01-277-6232
FSC: 5310
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM45938/11
NSN5310-01-277-6232
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: M45938/11 · 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: CLINCH
•
NUT DIAMETER: 0.470 INCHES NOMINAL IN
•
THREAD SERIES: UNF
•
NOMINAL THREAD SIZE: 0.190 INCHES IN
•
FEATURES PROVIDED: FLOATING NUT
•
THREAD QUANTITY PER INCH: 32
•
PILOT LENGTH: 0.038 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLECLINCH
NUT DIAMETER0.470 INCHES NOMINAL IN
THREAD SERIESUNF
NOMINAL THREAD SIZE0.190 INCHES IN
FEATURES PROVIDEDFLOATING NUT
THREAD QUANTITY PER INCH32
PILOT LENGTH0.038 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2B
SURFACE TREATMENTPASSIVATE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
AC-032-2Interchangeable
interchangeable cross-reference
interchangeable
322640-14Interchangeable
interchangeable cross-reference
interchangeable
ST660124-29Interchangeable
interchangeable cross-reference
interchangeable
18011D-SS-2528Interchangeable
interchangeable cross-reference
interchangeable
CLS-0428-2Interchangeable
interchangeable cross-reference
interchangeable
MIL-N-45938/1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M45938/11?
M45938/11 is a M45938/11.
What parts can replace M45938/11?
There are 11 known substitutes for M45938/11: AC-032-2, 322640-14, ST660124-29 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M45938/11?
M45938/11 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-277-6232. 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