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PartsTable / COMPONENT / NAS70CL328-563
NAS70CL328-563 ✓ 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 302 OVERALL, thickness: 0.016 INCHES NOMINAL IN, hole_diameter: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN, overall_diameter: 0.553 INCHES MINIMUM AND 0.573 INCHES MAXIMUM IN, surface_treatment: PASSIVATE OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-285-5677, 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
NAS70CL328-563
NSN: 5310-00-285-5677
FSC: 5310
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OVERALL
thickness0.016 INCHES NOMINAL IN
hole_diameter0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
overall_diameter0.553 INCHES MINIMUM AND 0.573 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationMIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-285-5677
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NAS70CL328-563 · 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
•
HOLE DIAMETER: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
•
OVERALL DIAMETER: 0.553 INCHES MINIMUM AND 0.573 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
THICKNESS: 0.016 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
CENTER HOLE SHAPE STYLE: ROUND
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
OVERALL DIAMETER0.553 INCHES MINIMUM AND 0.573 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.016 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
CENTER HOLE SHAPE STYLEROUND
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL COMP 302 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
S4-18UInterchangeable
interchangeable cross-reference
interchangeable
A6-18Interchangeable
interchangeable cross-reference
interchangeable
SS242Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAS70CL328-563?
NAS70CL328-563 is a WASHER,FLAT.
What parts can replace NAS70CL328-563?
There are 3 known substitutes for NAS70CL328-563: S4-18U, A6-18, SS242. Substitute compatibility should be verified for your specific system.
Is NAS70CL328-563 still available?
NAS70CL328-563 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