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Technical Data Sheet
PartsTable / COMPONENT / SC-B-69389-2
SC-B-69389-2 ✓ 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 material: COPPER ALLOY OVERALL, thickness: 0.042 INCHES MINIMUM AND 0.048 INCHES MAXIMUM IN, hole_diameter: 0.1405 INCHES MINIMUM AND 0.1425 INCHES MAXIMUM IN, overall_diameter: 0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-523-2143, 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
SC-B-69389-2
NSN: 5310-00-523-2143
FSC: 5310
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
thickness0.042 INCHES MINIMUM AND 0.048 INCHES MAXIMUM IN
hole_diameter0.1405 INCHES MINIMUM AND 0.1425 INCHES MAXIMUM IN
overall_diameter0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationASTM B103 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-523-2143
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SC-B-69389-2 · 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 B103 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: COPPER ALLOY OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
CENTER HOLE SHAPE STYLE: ROUND
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
THICKNESS: 0.042 INCHES MINIMUM AND 0.048 INCHES MAXIMUM IN
•
OVERALL DIAMETER: 0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
•
HOLE DIAMETER: 0.1405 INCHES MINIMUM AND 0.1425 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B103 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY OVERALL
PERIPHERAL SHAPE STYLEROUND
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.042 INCHES MINIMUM AND 0.048 INCHES MAXIMUM IN
OVERALL DIAMETER0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
HOLE DIAMETER0.1405 INCHES MINIMUM AND 0.1425 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
914534Interchangeable
interchangeable cross-reference
interchangeable
11943AInterchangeable
interchangeable cross-reference
interchangeable
1431Interchangeable
interchangeable cross-reference
interchangeable
48769Interchangeable
interchangeable cross-reference
interchangeable
5330Interchangeable
interchangeable cross-reference
interchangeable
727 5/16Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SC-B-69389-2?
SC-B-69389-2 is a WASHER,FLAT.
What parts can replace SC-B-69389-2?
There are 17 known substitutes for SC-B-69389-2: 914534, 11943A, 1431 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SC-B-69389-2?
SC-B-69389-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-523-2143. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026