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AS4679D20-32J — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

AS4679D20-32J: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OVERALL, thickness: 0.028 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN, hole_diameter: 1.578 INCHES NOMINAL IN, overall_diameter: 2.308 INCHES MINIMUM AND 2.333 INCHES MAXIMUM IN, surface_treatment: CHROMATE OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-726-0089, 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
AS4679D20-32J
NSN: 5310-01-726-0089
FSC: 5310 — Nuts and Washers
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OVERALL
thickness0.028 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
hole_diameter1.578 INCHES NOMINAL IN
overall_diameter2.308 INCHES MINIMUM AND 2.333 INCHES MAXIMUM IN
surface_treatmentCHROMATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identificationAIRCRAFT KC-46
cross-sectional_shape_styleRECTANGULAR
specification/standard_data0U583-AS4679B INTERNATIONAL STD/SPEC
material_document_and_classificationQQ-A-250/5 CONDITION T3 OR T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyWASHER,FLAT,SHORT FLARELESS
NSN5310-01-726-0089
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AS4679D20-32J · 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: MIL-C-5541,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
OVERALL DIAMETER: 2.308 INCHES MINIMUM AND 2.333 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/5 CONDITION T3 OR T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SPECIFICATION/STANDARD DATA: 0U583-AS4679B INTERNATIONAL STD/SPEC
•
SURFACE TREATMENT: CHROMATE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
OVERALL DIAMETER2.308 INCHES MINIMUM AND 2.333 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/5 CONDITION T3 OR T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SPECIFICATION/STANDARD DATA0U583-AS4679B INTERNATIONAL STD/SPEC
SURFACE TREATMENTCHROMATE OVERALL
PERIPHERAL SHAPE STYLEROUND
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER,FLAT,SHORT FLARELESS
END ITEM IDENTIFICATIONAIRCRAFT KC-46
MATERIALALUMINUM ALLOY 2024 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 AS4679D20-32J?
AS4679D20-32J is a WASHER,FLAT.
What is the NSN for AS4679D20-32J?
AS4679D20-32J is cataloged in the U.S. Government catalog under NSN 5310-01-726-0089. 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.