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1583809 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1583809: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, recess_angle: 100.0 DEGREES NOMINAL, hole_diameter: 0.256 INCHES MINIMUM AND 0.263 INCHES MAXIMUM IN, recess_diameter: 0.507 INCHES MINIMUM AND 0.519 INCHES MAXIMUM IN, outside_diameter: 0.750 INCHES NOMINAL IN, special_features: COLOR OLIVE DRAB X34087 FED-STD-595. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-236-1255, 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
1583809
NSN: 5310-00-236-1255
FSC: 5310 — Nuts and Washers
CAGE: 05869 — RAYTHEON COMPANY DIV RMD STRATEGIC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OVERALL
recess_angle100.0 DEGREES NOMINAL
hole_diameter0.256 INCHES MINIMUM AND 0.263 INCHES MAXIMUM IN
recess_diameter0.507 INCHES MINIMUM AND 0.519 INCHES MAXIMUM IN
outside_diameter0.750 INCHES NOMINAL IN
special_featuresCOLOR OLIVE DRAB X34087 FED-STD-595
style_designatorRECESSED
surface_treatmentANODIZE OVERALL
material_thickness0.190 INCHES NOMINAL IN
material_document_and_classificationQQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationMIL-A-8625,TY 3,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-236-1255
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1583809 · 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-A-8625,TY 3,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.750 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.190 INCHES NOMINAL IN
•
RECESS DIAMETER: 0.507 INCHES MINIMUM AND 0.519 INCHES MAXIMUM IN
•
SURFACE TREATMENT: ANODIZE OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 3,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORRECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.750 INCHES NOMINAL IN
MATERIAL THICKNESS0.190 INCHES NOMINAL IN
RECESS DIAMETER0.507 INCHES MINIMUM AND 0.519 INCHES MAXIMUM IN
SPECIAL FEATURESCOLOR OLIVE DRAB X34087 FED-STD-595
SURFACE TREATMENTANODIZE OVERALL
MATERIALALUMINUM ALLOY 6061 OVERALL
HOLE DIAMETER0.256 INCHES MINIMUM AND 0.263 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1583809?
1583809 is a WASHER,RECESSED.
What is the NSN for 1583809?
1583809 is cataloged in the U.S. Government catalog under NSN 5310-00-236-1255. 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.