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Technical Data Sheet
PartsTable / COMPONENT / MIL-DTL-45913/1
MIL-DTL-45913/1 ✓ 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 MIL-DTL-45913/1 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-057-7080, 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
MIL-DTL-45913/1
NSN: 5310-00-057-7080
FSC: 5310
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberMIL-DTL-45913/1
NSN5310-00-057-7080
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MIL-DTL-45913/1 · 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
•
THREAD CLASS: 2B
•
NUT STYLE: HEXAGON
•
BEARING SURFACE FINISH: 125.0 MICROINCHES
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
•
NOMINAL THREAD SIZE: 0.438 INCHES IN
•
MATERIAL: STEEL NUT
•
NUT HEIGHT: 0.438 INCHES MINIMUM AND 0.468 INCHES MAXIMUM IN
•
LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B
NUT STYLEHEXAGON
BEARING SURFACE FINISH125.0 MICROINCHES
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
NOMINAL THREAD SIZE0.438 INCHES IN
MATERIALSTEEL NUT
NUT HEIGHT0.438 INCHES MINIMUM AND 0.468 INCHES MAXIMUM IN
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
LUBRICATIONDRY FILM LUBRICANT
THREAD SERIESUNF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
443146Interchangeable
interchangeable cross-reference
interchangeable
10327Interchangeable
interchangeable cross-reference
interchangeable
32-2Interchangeable
interchangeable cross-reference
interchangeable
10-0324-0000Interchangeable
interchangeable cross-reference
interchangeable
CM20E7280KInterchangeable
interchangeable cross-reference
interchangeable
AN960-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-DTL-45913/1?
MIL-DTL-45913/1 is a MIL-DTL-45913/1.
What parts can replace MIL-DTL-45913/1?
There are 20 known substitutes for MIL-DTL-45913/1: 443146, 10327, 32-2 and 17 more. Substitute compatibility should be verified for your specific system.
Is MIL-DTL-45913/1 still available?
MIL-DTL-45913/1 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