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MIL-N-82512 — 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,PLAIN,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, nut_style: CLINCH, nut_height: 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), pilot_diameter: 0.259 INCHES MINIMUM AND 0.263 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System under NSN 5310-00-074-9612, 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-N-82512
NSN: 5310-00-074-9612
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_height0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.259 INCHES MINIMUM AND 0.263 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.312 INCHES NOMINAL IN
nominal_thread_size0.164 INCHES IN
thread_quantity_per_inch32
material_document_and_classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-074-9612
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MIL-N-82512 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP 303 OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 TY 4 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
PILOT DIAMETER: 0.289 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
THREAD QUANTITY PER INCH: 32
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
NUT STYLE: CLINCH
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 TY 4 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
PILOT DIAMETER0.289 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.138 INCHES IN
THREAD QUANTITY PER INCH32
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
NUT STYLECLINCH
NUT HEIGHT0.094 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 33
10116586InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
34NO62FL4-40InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
486071-6InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MS3214-11InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
610064P73InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
FN-0420-3InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-N-82512?
MIL-N-82512 is a NUT,PLAIN,CLINCH.
What parts can replace MIL-N-82512?
There are 33 known substitutes for MIL-N-82512: 10116586, 34NO62FL4-40, 486071-6 and 30 more. Substitute compatibility should be verified for your specific system.
Is MIL-N-82512 still available?
MIL-N-82512 is currently cancelled.
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Last verified: October 2026