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58599-1 — COUPLING,SHAFT,FLEXIBLE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

58599-1: COUPLING,SHAFT,FLEXIBLE.

The COUPLING,SHAFT,FLEXIBLE is a the manufacturer industrial component. Key specifications include diameter: 0.250 INCHES NOMINAL IN, material: STEEL COMP 1095 OVERALL, overall_length: 0.875 INCHES NOMINAL IN, hardness_rating: 46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL, style_designator: SLOTTED, surface_treatment: CADMIUM OR ZINC OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-058-5991, 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
58599-1
NSN: 5315-00-058-5991
NIINs: 000585991, 010280518
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
diameter0.250 INCHES NOMINAL IN
materialSTEEL COMP 1095 OVERALL
overall_length0.875 INCHES NOMINAL IN
hardness_rating46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
style_designatorSLOTTED
surface_treatmentCADMIUM OR ZINC OVERALL
material_thickness0.048 INCHES NOMINAL IN
material_document_and_classificationASTM A576 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-058-5991
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 58599-1 · 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
•
HARDNESS RATING: 46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: SLOTTED
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A576 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
DIAMETER: 0.250 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.048 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
•
MATERIAL: STEEL COMP 1095 OVERALL
TECHNICAL CHARACTERISTICS
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORSLOTTED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A576 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.250 INCHES NOMINAL IN
OVERALL LENGTH0.875 INCHES NOMINAL IN
MATERIAL THICKNESS0.048 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
MATERIALSTEEL COMP 1095 OVERALL
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 58599-1?
58599-1 is a COUPLING,SHAFT,FLEXIBLE.
What is the NSN for 58599-1?
58599-1 is cataloged in the U.S. Government catalog under NSN 5315-00-058-5991. 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.