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11579004 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

11579004: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, hole_diameter: 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES BOTTOM, outside_diameter: 0.970 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN, style_designator: KEY, surface_treatment: ANODIZE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-048-2637, 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
11579004
NSN: 5310-01-048-2637
FSC: 5310 — Nuts and Washers
CAGE: 19206 — ARMY, UNITED STATES DEPARTMENT OF THE DBA WATERVLIET ARSENAL DIV BUSINESS DEVELOPMENT (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OVERALL
hole_diameter0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES BOTTOM
outside_diameter0.970 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN
style_designatorKEY
surface_treatmentANODIZE OVERALL
material_thickness0.087 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
external_straight_key_width0.290 INCHES NOMINAL IN
material_document_and_classificationA11577279,TEMPER T6,FSCM 19206 MFR REF SINGLE MATERIAL RESPONSE OVERALL
distance_from_centerline_to_end_of_key0.555 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN
surface_treatment_document_and_classificationMIL-A-8625 TY 3 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-048-2637
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 11579004 · 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 FINISH: 63.0 MICROINCHES BOTTOM
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 TY 3 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: A11577279,TEMPER T6,FSCM 19206 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.970 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.087 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
•
EXTERNAL STRAIGHT KEY WIDTH: 0.290 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES BOTTOM
SURFACE FINISH63.0 MICROINCHES TOP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 TY 3 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONA11577279,TEMPER T6,FSCM 19206 MFR REF SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.970 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN
MATERIAL THICKNESS0.087 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
EXTERNAL STRAIGHT KEY WIDTH0.290 INCHES NOMINAL IN
DISTANCE FROM CENTERLINE TO END OF KEY0.555 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN
COLORBLACK 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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 11579004?
11579004 is a WASHER,KEY.
What is the NSN for 11579004?
11579004 is cataloged in the U.S. Government catalog under NSN 5310-01-048-2637. 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.