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70212ADX — 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,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: HEXAGON, nut_height: 0.109 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNF, thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System under NSN 5310-00-840-0530, 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
70212ADX
NSN: 5310-00-840-0530
FSC: 5310
CAGE: 1VN02 — AIRDALE EXPRESS LLC DIV AIRDALE EXPRESS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleHEXAGON
nut_height0.109 INCHES NOMINAL IN
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.312 INCHES NOMINAL IN
nominal_thread_size0.190 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch32
NSN5310-00-840-0530
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 70212ADX · 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 DIRECTION: RIGHT-HAND
•
WIDTH ACROSS FLATS: 0.312 INCHES NOMINAL IN
•
BEARING SURFACE TYPE: CHAMFERED
•
THREAD QUANTITY PER INCH: 32
•
NOMINAL THREAD SIZE: 0.190 INCHES IN
•
THREAD SERIES: UNF
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
THREAD DIRECTIONRIGHT-HAND
WIDTH ACROSS FLATS0.312 INCHES NOMINAL IN
BEARING SURFACE TYPECHAMFERED
THREAD QUANTITY PER INCH32
NOMINAL THREAD SIZE0.190 INCHES IN
THREAD SERIESUNF
SURFACE TREATMENTPASSIVATE OVERALL
NUT STYLEHEXAGON
MATERIALSTEEL CORROSION RESISTING OVERALL
THREAD CLASS2B
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
644594InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
0050266InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
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0050266-6InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
050266InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
7021-2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
6B4049InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 70212ADX?
70212ADX is a NUT,PLAIN,HEXAGON.
What parts can replace 70212ADX?
There are 15 known substitutes for 70212ADX: 644594, 0050266, 0050266-6 and 12 more. Substitute compatibility should be verified for your specific system.
Is 70212ADX still available?
70212ADX 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: October 2026