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Technical Data Sheet

MIL-DTL-45913 — 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,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the Federal Logistics Information System under NSN 5310-00-935-3750, 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
NSN: 5310-00-935-3750
FSC: 5310
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
hardness_rating33.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
special_featuresGRADE 8
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
width_across_flats0.922 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN
NSN5310-00-935-3750
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MIL-DTL-45913 · 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
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
•
NUT HEIGHT: 0.359 INCHES MAXIMUM IN
•
BEARING SURFACE FINISH: 110.0 MICROINCHES
•
MATERIAL: STEEL NUT
•
SURFACE TREATMENT: PHOSPHATE OVERALL EXCEPT INSERT
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-P-16232 TY 2 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT
•
HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
•
THREAD QUANTITY PER INCH: 24
TECHNICAL CHARACTERISTICS
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
NUT HEIGHT0.359 INCHES MAXIMUM IN
BEARING SURFACE FINISH110.0 MICROINCHES
MATERIALSTEEL NUT
SURFACE TREATMENTPHOSPHATE OVERALL EXCEPT INSERT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-P-16232 TY 2 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
THREAD QUANTITY PER INCH24
WIDTH ACROSS FLATS0.489 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
MATERIALPLASTIC POLYAMIDE NYLON LOCKING INSERT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
MS51943-57InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
M45913/3-24FG8CInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MS51943-9InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
M45913/3-8CG8PInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
EL190254InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
M45913/3-010CG5ZInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-DTL-45913?
MIL-DTL-45913 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace MIL-DTL-45913?
There are 24 known substitutes for MIL-DTL-45913: MS51943-57, M45913/3-24FG8C, MS51943-9 and 21 more. Substitute compatibility should be verified for your specific system.
Is MIL-DTL-45913 still available?
MIL-DTL-45913 is currently cancelled.
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