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165586 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The IMPELLER,FAN,AXIAL is a the manufacturer thermal management component critical for maintaining optimal operating temperatures in enterprise hardware. Key specifications include diameter: 7.970 INCHES MINIMUM AND 8.060 INCHES MAXIMUM IN, material: ALUMINUM OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-596-9781, 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
165586
NSN: 5310-00-596-9781
FSC: 5310
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
diameter7.970 INCHES MINIMUM AND 8.060 INCHES MAXIMUM IN
materialALUMINUM OVERALL
blade_quantity5
NSN5310-00-596-9781
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 165586 · 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
•
THREAD CLASS: 3B
•
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
•
BEARING SURFACE TYPE: CHAMFERED
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
THREAD QUANTITY PER INCH: 28
•
MATERIAL: STEEL COMP 1018 OVERALL
•
WIDTH ACROSS FLATS: 0.531 INCHES NOMINAL IN
•
NUT HEIGHT: 0.500 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • Server thermal management and cooling
  • Hot-swap fan replacement in production environments
  • Redundant cooling for high-availability systems
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3B
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
BEARING SURFACE TYPECHAMFERED
NOMINAL THREAD SIZE0.250 INCHES IN
THREAD QUANTITY PER INCH28
MATERIALSTEEL COMP 1018 OVERALL
WIDTH ACROSS FLATS0.531 INCHES NOMINAL IN
NUT HEIGHT0.500 INCHES NOMINAL IN
THREAD SERIESUNF
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
0-832-5Interchangeable
interchangeable cross-reference
interchangeable
16-5586Interchangeable
interchangeable cross-reference
interchangeable
26C-048Interchangeable
interchangeable cross-reference
interchangeable
HS5136-0048Interchangeable
interchangeable cross-reference
interchangeable
3M154-048Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 165586?
165586 is a IMPELLER,FAN,AXIAL.
What parts can replace 165586?
There are 5 known substitutes for 165586: 0-832-5, 16-5586, 26C-048 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 165586?
165586 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-596-9781. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026