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AEW01X281625BD6A81 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

AEW01X281625BD6A81: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN, hole_diameter: 0.281 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN, overall_diameter: 0.593 INCHES MINIMUM AND 0.657 INCHES MAXIMUM IN, special_features: STYLE: SAE EXTRA THICK; GRADE: THRU-HARDENED; MATERIAL: MEDIUM CARBON STEEL, surface_treatment: DICHROMATE ZINC AND ZINC OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-628-8786, 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
AEW01X281625BD6A81
NSN: 5310-01-628-8786
FSC: 5310 — Nuts and Washers
CAGE: 05047 — THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
hole_diameter0.281 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
overall_diameter0.593 INCHES MINIMUM AND 0.657 INCHES MAXIMUM IN
special_featuresSTYLE: SAE EXTRA THICK; GRADE: THRU-HARDENED; MATERIAL: MEDIUM CARBON STEEL
surface_treatmentDICHROMATE ZINC AND ZINC OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identificationMRAP - COUGAR CAT2 A2; MRAP - COUGAR CAT1 A2
cross-sectional_shape_styleRECTANGULAR
NSN5310-01-628-8786
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AEW01X281625BD6A81 · 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
•
OVERALL DIAMETER: 0.593 INCHES MINIMUM AND 0.657 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: DICHROMATE ZINC AND ZINC OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.593 INCHES MINIMUM AND 0.657 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SPECIAL FEATURESSTYLE: SAE EXTRA THICK; GRADE: THRU-HARDENED; MATERIAL: MEDIUM CARBON STEEL
SURFACE TREATMENTDICHROMATE ZINC AND ZINC OVERALL
PERIPHERAL SHAPE STYLEROUND
END ITEM IDENTIFICATIONMRAP - COUGAR CAT2 A2; MRAP - COUGAR CAT1 A2
MATERIALSTEEL OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.281 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
THICKNESS0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
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 1
11128609Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 AEW01X281625BD6A81?
AEW01X281625BD6A81 is a WASHER,FLAT.
What parts can replace AEW01X281625BD6A81?
There is 1 known substitute for AEW01X281625BD6A81: 11128609. Substitute compatibility should be verified for your specific system.
What is the NSN for AEW01X281625BD6A81?
AEW01X281625BD6A81 is cataloged in the U.S. Government catalog under NSN 5310-01-628-8786. 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.