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7598-53 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

7598-53: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.440 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN, outside_diameter: 0.580 INCHES MINIMUM AND 0.593 INCHES MAXIMUM IN, special_features: COLOR BLACK, style_designator: FLAT INTERNAL TEETH, surface_treatment: CADMIUM AND CHROMATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-279-4201, 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
7598-53
NSN: 5310-00-279-4201
FSC: 5310 — Nuts and Washers
CAGE: 73803 — TEXAS INSTRUMENTS INC METALLURGICAL MATERIALS DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.440 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
outside_diameter0.580 INCHES MINIMUM AND 0.593 INCHES MAXIMUM IN
special_featuresCOLOR BLACK
style_designatorFLAT INTERNAL TEETH
surface_treatmentCADMIUM AND CHROMATE OVERALL
material_thickness0.016 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
surface_treatment_document_and_classification10-9 TY 2,CL 1,FSCM 73803 MFR REF 1ST TREATMENT RESPONSE AND 579,FSCM 73803 MFR REF 2ND TREATMENT RESPONSE OVERALL
NSN5310-00-279-4201
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7598-53 · 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: 10-9 TY 2,CL 1,FSCM 73803 MFR REF 1ST TREATMENT RESPONSE AND 579,FSCM 73803 MFR REF 2ND TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: FLAT INTERNAL TEETH
•
OUTSIDE DIAMETER: 0.580 INCHES MINIMUM AND 0.593 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.016 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.440 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION10-9 TY 2,CL 1,FSCM 73803 MFR REF 1ST TREATMENT RESPONSE AND 579,FSCM 73803 MFR REF 2ND TREATMENT RESPONSE OVERALL
STYLE DESIGNATORFLAT INTERNAL TEETH
OUTSIDE DIAMETER0.580 INCHES MINIMUM AND 0.593 INCHES MAXIMUM IN
MATERIAL THICKNESS0.016 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
SPECIAL FEATURESCOLOR BLACK
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
MATERIALSTEEL OVERALL
HOLE DIAMETER0.440 INCHES MINIMUM AND 0.448 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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7598-53?
7598-53 is a WASHER,LOCK.
What is the NSN for 7598-53?
7598-53 is cataloged in the U.S. Government catalog under NSN 5310-00-279-4201. 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.