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PartsTable / COMPONENT / 9421425
9421425 ✓ 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 WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.394 INCHES NOMINAL IN, outside_diameter: 0.679 INCHES NOMINAL IN, style_designator: SPLIT HELICAL-RIGHT HAND, surface_treatment: CADMIUM OVERALL, material_thickness: 0.099 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-481-6411, 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
9421425
NSN: 5310-00-481-6411
FSC: 5310
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.394 INCHES NOMINAL IN
outside_diameter0.679 INCHES NOMINAL IN
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentCADMIUM OVERALL
material_thickness0.099 INCHES NOMINAL IN
NSN5310-00-481-6411
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 9421425 · 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: STEEL OVERALL
•
MATERIAL THICKNESS: 0.099 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.394 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
OUTSIDE DIAMETER: 0.679 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
MATERIAL THICKNESS0.099 INCHES NOMINAL IN
HOLE DIAMETER0.394 INCHES NOMINAL IN
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
OUTSIDE DIAMETER0.679 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
120382Interchangeable
interchangeable cross-reference
interchangeable
25704-281340-09-0Interchangeable
interchangeable cross-reference
interchangeable
2N2979Interchangeable
interchangeable cross-reference
interchangeable
0.5M7.5AZ2Interchangeable
interchangeable cross-reference
interchangeable
HP09476Interchangeable
interchangeable cross-reference
interchangeable
T113Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9421425?
9421425 is a WASHER,LOCK.
What parts can replace 9421425?
There are 20 known substitutes for 9421425: 120382, 25704-281340-09-0, 2N2979 and 17 more. Substitute compatibility should be verified for your specific system.
Is 9421425 still available?
9421425 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