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Technical Data Sheet
PartsTable / COMPONENT / SC-B-69235
SC-B-69235 ✓ 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: STEEL COMP 1213 OVERALL, thickness: 0.0924 INCHES MINIMUM AND 0.0944 INCHES MAXIMUM IN, hole_diameter: 0.219 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN, surface_finish: 32.0 MICROINCHES TOP, overall_diameter: 0.438 INCHES NOMINAL IN, features_provided: CASEHARDENED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-523-2002, 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-69235
NSN: 5310-00-523-2002
FSC: 5310
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialSTEEL COMP 1213 OVERALL
thickness0.0924 INCHES MINIMUM AND 0.0944 INCHES MAXIMUM IN
hole_diameter0.219 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES TOP
overall_diameter0.438 INCHES NOMINAL IN
features_providedCASEHARDENED
surface_treatmentPHOSPHATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classification66 FED STD ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationMIL-C-16232 TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-523-2002
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SC-B-69235 · 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
•
PERIPHERAL SHAPE STYLE: ROUND
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
FEATURES PROVIDED: CASEHARDENED
•
SURFACE FINISH: 32.0 MICROINCHES BOTTOM
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
MATERIAL: STEEL COMP 1213 OVERALL
•
SURFACE TREATMENT: PHOSPHATE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
PERIPHERAL SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
FEATURES PROVIDEDCASEHARDENED
SURFACE FINISH32.0 MICROINCHES BOTTOM
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
SURFACE FINISH32.0 MICROINCHES TOP
MATERIALSTEEL COMP 1213 OVERALL
SURFACE TREATMENTPHOSPHATE OVERALL
OVERALL DIAMETER0.438 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-16232 TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
316490Interchangeable
interchangeable cross-reference
interchangeable
31649Interchangeable
interchangeable cross-reference
interchangeable
500-53Interchangeable
interchangeable cross-reference
interchangeable
8-08436-3Interchangeable
interchangeable cross-reference
interchangeable
1834YInterchangeable
interchangeable cross-reference
interchangeable
303843Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SC-B-69235?
SC-B-69235 is a WASHER,FLAT.
What parts can replace SC-B-69235?
There are 14 known substitutes for SC-B-69235: 316490, 31649, 500-53 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SC-B-69235?
SC-B-69235 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-523-2002. 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