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AEW20X40M000BD8A41 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

AEW20X40M000BD8A41: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 4.15 MILLIMETERS MINIMUM AND 4.30 MILLIMETERS MAXIMUM MM, outside_diameter: 8.50 MILLIMETERS MINIMUM AND 9.00 MILLIMETERS MAXIMUM MM, style_designator: FLAT EXTERNAL TEETH, surface_treatment: ZINC OVERALL, material_thickness: 0.45 MILLIMETERS MINIMUM AND 0.60 MILLIMETERS MAXIMUM MM. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-702-5357, 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
AEW20X40M000BD8A41
NSN: 5310-01-702-5357
FSC: 5310 — Nuts and Washers
CAGE: 05047 — THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter4.15 MILLIMETERS MINIMUM AND 4.30 MILLIMETERS MAXIMUM MM
outside_diameter8.50 MILLIMETERS MINIMUM AND 9.00 MILLIMETERS MAXIMUM MM
style_designatorFLAT EXTERNAL TEETH
surface_treatmentZINC OVERALL
material_thickness0.45 MILLIMETERS MINIMUM AND 0.60 MILLIMETERS MAXIMUM MM
end_item_identification2355-016169288
specification/standard_data05047-ASME B18.24-2020 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
material_document_and_classificationASTM F436M,TYPE 1 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyWASHER,LOCK,EXTERNAL TOOTH (METRIC)
surface_treatment_document_and_classificationASTM B633, TYPE 1, SC 1 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-702-5357
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AEW20X40M000BD8A41 · 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 TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633, TYPE 1, SC 1 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: FLAT EXTERNAL TEETH
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM F436M,TYPE 1 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 8.50 MILLIMETERS MINIMUM AND 9.00 MILLIMETERS MAXIMUM MM
•
MATERIAL THICKNESS: 0.45 MILLIMETERS MINIMUM AND 0.60 MILLIMETERS MAXIMUM MM
•
SPECIFICATION/STANDARD DATA: 05047-ASME B18.24-2020 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
SURFACE TREATMENT: ZINC OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633, TYPE 1, SC 1 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORFLAT EXTERNAL TEETH
MATERIAL DOCUMENT AND CLASSIFICATIONASTM F436M,TYPE 1 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER8.50 MILLIMETERS MINIMUM AND 9.00 MILLIMETERS MAXIMUM MM
MATERIAL THICKNESS0.45 MILLIMETERS MINIMUM AND 0.60 MILLIMETERS MAXIMUM MM
SPECIFICATION/STANDARD DATA05047-ASME B18.24-2020 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE TREATMENTZINC OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER,LOCK,EXTERNAL TOOTH (METRIC)
END ITEM IDENTIFICATION2355-016169288
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AEW20X40M000BD8A41?
AEW20X40M000BD8A41 is a WASHER,LOCK.
What is the NSN for AEW20X40M000BD8A41?
AEW20X40M000BD8A41 is cataloged in the U.S. Government catalog under NSN 5310-01-702-5357. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.