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PartsTable / COMPONENT / ML620-62
ML620-62 ✓ 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 NUT,SLEEVE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2017 OR ALUMINUM ALLOY 2024 OVERALL, nut_style: SLEEVE, nut_length: 0.966 INCHES MINIMUM AND 0.970 INCHES MAXIMUM IN, nut_diameter: 0.217 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-240-8919, 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
ML620-62
NSN: 5310-01-240-8919
FSC: 5310
CAGE: 55482 — MOUNT LOK PRODUCTS INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2017 OR ALUMINUM ALLOY 2024 OVERALL
nut_styleSLEEVE
nut_length0.966 INCHES MINIMUM AND 0.970 INCHES MAXIMUM IN
nut_diameter0.217 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
flange_diameter0.344 INCHES NOMINAL IN
flange_thickness0.063 INCHES NOMINAL IN
special_featuresTWO SLOTS LOCATED AT 180 DEG ON FLANGE OUTSIDE DIA,0.046 IN. RADIUS IN
thread_directionRIGHT-HAND
surface_treatmentANODIZE OVERALL
nominal_thread_size0.164 INCHES IN
NSN5310-01-240-8919
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: ML620-62 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625,TY 2,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
NUT COUNTERBORE DEPTH: 0.656 INCHES NOMINAL BOSS IN
•
MATERIAL: ALUMINUM ALLOY 2017 OR ALUMINUM ALLOY 2024 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/5,T4 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/6,T4 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-200/3,T4 OR T3511 FED SPEC 2ND MATERIAL RESPONSE OVERALL
•
NUT DIAMETER: 0.217 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN
•
NUT LENGTH: 0.966 INCHES MINIMUM AND 0.970 INCHES MAXIMUM IN
•
NOMINAL THREAD SIZE: 0.164 INCHES IN
•
NUT STYLE: SLEEVE
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 2,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NUT COUNTERBORE DEPTH0.656 INCHES NOMINAL BOSS IN
MATERIALALUMINUM ALLOY 2017 OR ALUMINUM ALLOY 2024 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/5,T4 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/6,T4 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-200/3,T4 OR T3511 FED SPEC 2ND MATERIAL RESPONSE OVERALL
NUT DIAMETER0.217 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN
NUT LENGTH0.966 INCHES MINIMUM AND 0.970 INCHES MAXIMUM IN
NOMINAL THREAD SIZE0.164 INCHES IN
NUT STYLESLEEVE
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH32
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
70-3552Interchangeable
interchangeable cross-reference
interchangeable
146K1Interchangeable
interchangeable cross-reference
interchangeable
799138Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ML620-62?
ML620-62 is a NUT,SLEEVE.
What parts can replace ML620-62?
There are 3 known substitutes for ML620-62: 70-3552, 146K1, 799138. Substitute compatibility should be verified for your specific system.
What is the NSN for ML620-62?
ML620-62 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-240-8919. 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