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4900206 — HEAT EXCHANGER,AIR TO AIR,AIRCRA

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

4900206: HEAT EXCHANGER,AIR TO AIR,AIRCRA.

HEAT EXCHANGER,AIR TO AIR,AIRCRA. Key specifications include material: ALUMINUM ALLOY CASE, overall_depth: 6.900 INCHES NOMINAL IN, overall_width: 5.570 INCHES NOMINAL IN, overall_height: 9.090 INCHES NOMINAL IN, end_item_identification: C-17 AIRCRAFT, part_name_assigned_by_controlling_agency: HEAT EXCHANGER 1ST AND 2ND STAGE. This part is cataloged in the U.S.

Government catalog under NSN 1660-01-541-6970, 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
4900206
NSN: 1660-01-541-6970
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
CAGE: 55820 — RTX CORPORATION DIV PRATT & WHITNEY (USA)
SPECIFICATIONS
materialALUMINUM ALLOY CASE
overall_depth6.900 INCHES NOMINAL IN
overall_width5.570 INCHES NOMINAL IN
overall_height9.090 INCHES NOMINAL IN
end_item_identificationC-17 AIRCRAFT
part_name_assigned_by_controlling_agencyHEAT EXCHANGER 1ST AND 2ND STAGE
reference_number_differentiating_characteristicsAS DIFFER BY SOURCE CONTROL
NSN1660-01-541-6970
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available HEAT EXCHANGER,AIR TO AIR,AIRCRA TITLE COMPONENT PN 4900206 MFR HEAT EXCHANGER,AIR TO
KEY FEATURES
•
MATERIAL: ALUMINUM ALLOY CASE
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: AS DIFFER BY SOURCE CONTROL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT9.090 INCHES NOMINAL IN
OVERALL WIDTH5.570 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYHEAT EXCHANGER 1ST AND 2ND STAGE
END ITEM IDENTIFICATIONC-17 AIRCRAFT
MATERIALALUMINUM ALLOY CASE
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFER BY SOURCE CONTROL
OVERALL DEPTH6.900 INCHES NOMINAL IN
OTHER ITEMS IN FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1660-00-006-4472 1660-00-009-5646 1660-00-019-8389 1660-00-019-8399 1660-00-031-5285 1660-00-302-4390 1660-00-441-0575 1660-01-601-0729
SUBSTITUTES & CROSS-REFERENCES 1
6661G3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4900206?
4900206 is a HEAT EXCHANGER,AIR TO AIR,AIRCRA.
What parts can replace 4900206?
There is 1 known substitute for 4900206: 6661G3. Substitute compatibility should be verified for your specific system.
What is the NSN for 4900206?
4900206 is cataloged in the U.S. Government catalog under NSN 1660-01-541-6970. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.