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Technical Data Sheet
PartsTable / COMPONENT / 540-3023-003
540-3023-003 ✓ 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: 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN, hole_diameter: 0.139 INCHES MINIMUM AND 0.149 INCHES MAXIMUM IN, overall_diameter: 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, surface_treatment: PASSIVATE OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-685-8240, 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
540-3023-003
NSN: 5310-00-685-8240
FSC: 5310
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OVERALL
thickness0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
hole_diameter0.139 INCHES MINIMUM AND 0.149 INCHES MAXIMUM IN
overall_diameter0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationQQ-S-766,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-35,TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-685-8240
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 540-3023-003 · 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 COMP 302 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-766,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35,TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
OVERALL DIAMETER: 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
•
HOLE DIAMETER: 0.139 INCHES MINIMUM AND 0.149 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 302 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35,TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
HOLE DIAMETER0.139 INCHES MINIMUM AND 0.149 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLEROUND
THICKNESS0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
58838OXIDEInterchangeable
interchangeable cross-reference
interchangeable
58838Interchangeable
interchangeable cross-reference
interchangeable
3332 38Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 540-3023-003?
540-3023-003 is a WASHER,FLAT.
What parts can replace 540-3023-003?
There are 3 known substitutes for 540-3023-003: 58838OXIDE, 58838, 3332 38. Substitute compatibility should be verified for your specific system.
Is 540-3023-003 still available?
540-3023-003 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