Your search for "nxa-fan" revealed the following:
NEW Cisco C4KX-FAN-R Catalyst 4500-X Series Front-to-Back Airflow Switch Fan
SKU: NSN-9095
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Cisco N77-C7706-FAN Nexus 7000 Series Power Supply Fan
SKU: NSH-7778
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco NXA-PAC-2KW-PI 2000W AC Front-to-Back Airflow Switch Power Supply
SKU: NSN-4650
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Nvidia Mellanox MTEF-FANF-C B-F (P2C) Fan for QM8700, SN3700, SN3700C, SN3420
SKU: NSB-6715
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Extreme Brocade BR-MLXE-4-FAN MLXe Series Exhaust Fan Assembly Kit
SKU: NSH-9223
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Cisco NXA-PAC-1200W-PI 1200W AC F-B (Port Side Intake) Power Supply for N9K
SKU: NSB-7716
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Ruckus Brocade ICX7750-FAN-E Fan Kit of 4 - F-B Airflow (Port Side Intake)
SKU: NSN-4952
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco N7K-C7018-FAN Nexus 7000 Series 18-Slot Fan Tray
SKU: NSN-6795
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco C3KX-FAN-23CFM Catalyst 3750X Series Switch Fan
SKU: NSN-1523
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco NXA-PAC-1200W-PE 1200W AC B-F (Port Side Exhaust) Power Supply for N9K
SKU: NSN-0628
Condition: New
Shipping: Overnight Options
Warranty: 365 days