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Technical Data Sheet
221A751-1 ✓ Verified by PartsTable
· COMPONENT
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 COOLER UNIT,AIR is a the manufacturer industrial component. Key specifications include special_features: ITEM NAME TEXT IS COOLER UNIT,AIR, part_name_assigned_by_controlling_agency: HEAT EXCHANGER ASSY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4130-01-536-4125, 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
221A751-1
NSN: 4130-01-536-4125
FSC: 4130
CAGE: 52088 — LOCKHEED MARTIN CORPORATION DIV RMS - MANASSAS (USA)
SPECIFICATIONS
special_featuresITEM NAME TEXT IS COOLER UNIT,AIR
end_item_identificationAN/BYK-6(V)1 UNIT 7001&7002&7003 CONFIG C, CSES1-1&-2, ARCH SYS BAY 11&EQUIP BAY;TACTICAL TOMAHAWK WPN CNTL 3 BAY (UNIT 5026&5027)
part_name_assigned_by_controlling_agencyHEAT EXCHANGER ASSY
NSN4130-01-536-4125
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COOLER UNIT,AIR TITLE COMPONENT PN 221A751-1 MFR COOLER UNIT,AIR
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONAN/BYK-6(V)1 UNIT 7001&7002&7003 CONFIG C, CSES1-1&-2, ARCH SYS BAY 11&EQUIP BAY;TACTICAL TOMAHAWK WPN CNTL 3 BAY (UNIT 5026&5027)
SPECIAL FEATURESITEM NAME TEXT IS COOLER UNIT,AIR
PART NAME ASSIGNED BY CONTROLLING AGENCYHEAT EXCHANGER ASSY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
02161-3056-03Interchangeable
interchangeable cross-reference
interchangeable
1735-02Interchangeable
interchangeable cross-reference
interchangeable
2161-3056Interchangeable
interchangeable cross-reference
interchangeable
256346C11Interchangeable
interchangeable cross-reference
interchangeable
17351 MATCHED SET 2Interchangeable
interchangeable cross-reference
interchangeable
348M2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 221A751-1?
221A751-1 is a COOLER UNIT,AIR.
What parts can replace 221A751-1?
There are 6 known substitutes for 221A751-1: 02161-3056-03, 1735-02, 2161-3056 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 221A751-1?
221A751-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4130-01-536-4125. This indicates validated use in U.S. government and defense supply chains.
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