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Technical Data Sheet
PartsTable / MRO / 1-20585
1-20585 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The GUARD,FAN,A,IAL is a the manufacturer thermal management component critical for maintaining optimal operating temperatures in enterprise hardware. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.363 INCHES MINIMUM AND 0.387 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNF, overall_length: 5.531 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5840-00-310-3509, 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
MRO→ MRO_GENERAL→ 1-20585
NSN: 5840-00-310-3509
FSC: 5840
CAGE: 50870 — ARNOLD A SEMLER INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.363 INCHES MINIMUM AND 0.387 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNF
overall_length5.531 INCHES NOMINAL IN
hardness_rating2.0 ROCKWELL B MINIMUM AND 69.0 ROCKWELL B MAXIMUM
mounting_methodTUBULAR
overall_diameter0.875 INCHES NOMINAL IN
thread_directionRIGHT-HAND
mounting_positionTUBULAR VERTICAL
surface_treatmentPHOSPHATE ZINC OVERALL
NSN5840-00-310-3509
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GUARD,FAN,A,IAL TITLE COMPONENT PN 1-20585 MFR GUARD,FAN,A,IAL
TYPICAL APPLICATIONS
  • Server thermal management and cooling
  • Hot-swap fan replacement in production environments
  • Redundant cooling for high-availability systems
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
340 2700Interchangeable
interchangeable cross-reference
interchangeable
7-660-200230Interchangeable
interchangeable cross-reference
interchangeable
MS35691-1026Interchangeable
interchangeable cross-reference
interchangeable
120-0585Interchangeable
interchangeable cross-reference
interchangeable
120A585Interchangeable
interchangeable cross-reference
interchangeable
120-585Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1-20585?
1-20585 is a GUARD,FAN,A,IAL. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1-20585?
There are 8 known substitutes for 1-20585: 340 2700, 7-660-200230, MS35691-1026 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1-20585?
1-20585 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5840-00-310-3509. 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