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BL-6359 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

BL-6359: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.625 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN, heat_treatment: AS FABRICATED, outside_diameter: 0.834 INCHES MINIMUM AND 0.844 INCHES MAXIMUM IN, style_designator: RECESSED BOTH SIDES, top_recess_angle: 90.0 DEGREES NOMINAL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-014-5764, 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
BL-6359
NSN: 5310-00-014-5764
FSC: 5310 — Nuts and Washers
CAGE: 08484 — BREEZE-EASTERN LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.625 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
heat_treatmentAS FABRICATED
outside_diameter0.834 INCHES MINIMUM AND 0.844 INCHES MAXIMUM IN
style_designatorRECESSED BOTH SIDES
top_recess_angle90.0 DEGREES NOMINAL
surface_treatmentCADMIUM OVERALL
material_thickness0.172 INCHES NOMINAL IN
bottom_recess_angle90.0 DEGREES NOMINAL
top_recess_diameter0.630 INCHES NOMINAL IN
bottom_recess_diameter0.630 INCHES NOMINAL IN
NSN5310-00-014-5764
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BL-6359 · 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
•
TOP RECESS DIAMETER: 0.630 INCHES NOMINAL IN
•
BOTTOM RECESS DIAMETER: 0.630 INCHES NOMINAL IN
•
HEAT TREATMENT: AS FABRICATED
•
TOP RECESS ANGLE: 90.0 DEGREES NOMINAL
•
STYLE DESIGNATOR: RECESSED BOTH SIDES
•
OUTSIDE DIAMETER: 0.834 INCHES MINIMUM AND 0.844 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.172 INCHES NOMINAL IN
•
BOTTOM RECESS ANGLE: 90.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS
TOP RECESS DIAMETER0.630 INCHES NOMINAL IN
BOTTOM RECESS DIAMETER0.630 INCHES NOMINAL IN
HEAT TREATMENTAS FABRICATED
TOP RECESS ANGLE90.0 DEGREES NOMINAL
STYLE DESIGNATORRECESSED BOTH SIDES
OUTSIDE DIAMETER0.834 INCHES MINIMUM AND 0.844 INCHES MAXIMUM IN
MATERIAL THICKNESS0.172 INCHES NOMINAL IN
BOTTOM RECESS ANGLE90.0 DEGREES NOMINAL
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL 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 BL-6359?
BL-6359 is a WASHER,RECESSED.
What is the NSN for BL-6359?
BL-6359 is cataloged in the U.S. Government catalog under NSN 5310-00-014-5764. 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.