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PartsTable / COMPONENT / SCB69389-9
SCB69389-9 ✓ 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,FLAT is a the manufacturer industrial component. Key specifications include thickness: 0.0363 INCHES MINIMUM AND 0.0383 INCHES MAXIMUM IN, surface_finish: 32.0 MICROINCHES TOP, overall_diameter: 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN, special_features: MATERIAL IS COPPER ALLOY LOCATION UNKNOWN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-356-3497, 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
SCB69389-9
NSN: 5310-00-356-3497
FSC: 5310
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
thickness0.0363 INCHES MINIMUM AND 0.0383 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES TOP
overall_diameter0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
special_featuresMATERIAL IS COPPER ALLOY LOCATION UNKNOWN
NSN5310-00-356-3497
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SCB69389-9 · 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 FINISH: 32.0 MICROINCHES BOTTOM
•
THICKNESS: 0.0363 INCHES MINIMUM AND 0.0383 INCHES MAXIMUM IN
•
OVERALL DIAMETER: 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISH32.0 MICROINCHES BOTTOM
SURFACE FINISH32.0 MICROINCHES TOP
THICKNESS0.0363 INCHES MINIMUM AND 0.0383 INCHES MAXIMUM IN
OVERALL DIAMETER0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
SPECIAL FEATURESMATERIAL IS COPPER ALLOY LOCATION UNKNOWN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
224VInterchangeable
interchangeable cross-reference
interchangeable
5154Interchangeable
interchangeable cross-reference
interchangeable
5155-5Interchangeable
interchangeable cross-reference
interchangeable
051555Interchangeable
interchangeable cross-reference
interchangeable
KT721023AInterchangeable
interchangeable cross-reference
interchangeable
MIL-F-2692Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SCB69389-9?
SCB69389-9 is a WASHER,FLAT.
What parts can replace SCB69389-9?
There are 6 known substitutes for SCB69389-9: 224V, 5154, 5155-5 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SCB69389-9?
SCB69389-9 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-356-3497. 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