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B821 — FAN ASSEMBLY

✓ Government record, cited
— · FAN MODULE
PRODUCT OVERVIEW

B821: FAN ASSEMBLY.

The FAN ASSEMBLY is a the manufacturer thermal management component critical for maintaining optimal operating temperatures in enterprise hardware. Key specifications include end_item_identification: 0A-9491/UYQ-70(V), DISP GRP, SUB, CSRR SSBN/GN, MAIN A, criticality_code_justification: FEAT, part_name_assigned_by_controlling_agency: INAVY - FAN ASSEMBLY, SCDT HEAT EXCH. This part is cataloged in the U.S.

Government catalog under NSN 4140-01-505-3753, 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
B821
NSN: 4140-01-505-3753
FSC: 4140 — Fans, Air Circulators, and Blower Equipment
CAGE: 90536 — LOCKHEED MARTIN CORP DBA LOCKHEED MARTIN DIV MST - EAGAN (USA)
SPECIFICATIONS
end_item_identification0A-9491/UYQ-70(V), DISP GRP, SUB, CSRR SSBN/GN, MAIN A
criticality_code_justificationFEAT
part_name_assigned_by_controlling_agencyINAVY - FAN ASSEMBLY, SCDT HEAT EXCH
NSN4140-01-505-3753
COMPONENT DIAGRAM
HANDLE 60mm 60mm HOT-PLUG COOL IN HOT OUT DUAL ROTOR HOT-SWAP FAN MODULE | 60mm Dual Rotor | FRONT-TO-BACK Hot-plug | Redundant | TITLE FAN MODULE PN B821 MFR OEM FAN ASSEMBLY
KEY FEATURES
•
CRITICALITY CODE JUSTIFICATION: FEAT
TYPICAL APPLICATIONS
  • Server thermal management and cooling
  • Hot-swap fan replacement in production environments
  • Redundant cooling for high-availability systems
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONFEAT
SPECIAL FEATURESITEMS ARE BEING CODED AS CRITICAL TO INSURE SOURCE INSPECTION WILL BE PERFORMED AT THE POINT OF MANUFACTURE, PRIOR TO MATERIAL RECEIPT BY THE US NAVY OR OTHER DOD COMPONENTS. THESE ITEMS ARE PIECE PARTS OR END ITEMS IN SUPPORT OF VITAL MILITARY HARDWARE NECESSARY TO SUSTAIN THE SUCCESSFUL MISSION OF THE SHIPS, SUBMARINES, AND SHORE STATIONS OF THE US NAVY. CRITICAL FEATURES INCLUDING, BUT NOT LIMITED TO, DIMENSIONS, TOLERANCES/CLEARANCES, ELECTRONIC CHARACTERISTICS, AND METALLURGICAL PROPERTIES WILL BESPECIFIED FOR GOVERNMENT Q AR (QUALITY ASSURANCE REPRESENTATIVES) TO INSURE THE HIGHEST POSSIBLE DEGREE OF QUALITY AND RELIABILITY OF THESE PARTS BEING DELIVERED UNDER NAVICP CONTRACTS
PART NAME ASSIGNED BY CONTROLLING AGENCYINAVY - FAN ASSEMBLY, SCDT HEAT EXCH
END ITEM IDENTIFICATION0A-9491/UYQ-70(V), DISP GRP, SUB, CSRR SSBN/GN, MAIN A
OTHER ITEMS IN FSC 4140 — Fans, Air Circulators, and Blower Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4140-00-000-0082 4140-00-001-1517 4140-00-001-1536 4140-00-001-1537 4140-00-001-3930 4140-00-001-6464 4140-00-001-6874 4140-00-001-6875
SUBSTITUTES & CROSS-REFERENCES 1
7423172-00Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 B821?
B821 is a FAN ASSEMBLY.
What parts can replace B821?
There is 1 known substitute for B821: 7423172-00. Substitute compatibility should be verified for your specific system.
What is the NSN for B821?
B821 is cataloged in the U.S. Government catalog under NSN 4140-01-505-3753. This indicates validated use in U.S. government and defense supply chains.
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