NSN 1660-00-640-8439 · NIIN 006408439 · Part number E93A22
Surface Combustion Inc · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 58588
Government record, cited
NSN 1660-00-640-8439 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-640-8439. Manufacturer of record part number: E93A22.
Also searched as1660-00-640-8439 ·
1660006408439 ·
NIIN 006408439 ·
00-640-8439 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 58588 · E93A22
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: E93A22
Manufacturer: Surface Combustion Inc
General Description
The Heater,aircraft, cataloged under National Stock Number 1660-00-640-8439, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Surface Combustion Inc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1660-00-640-8439
Primary Part Number
E93A22
Item Name
Heater,aircraft
FSC / FSG
1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
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.
1660-00-001-1693
DUCT ASSEMBLY,AIR CONDITIONING-H
1660-00-001-1754
BAFFLE,AIR
1660-00-001-2491
CAGE,BYPASS VALVE
1660-00-001-2493
1660-00-001-2493 · Item name not on file
1660-00-001-2496
CONTROL BOX,ELECTRICAL-ELECTRONI
1660-00-001-2497
1660-00-001-2497 · Item name not on file
1660-00-001-4130
1660-00-001-4130 · Item name not on file
1660-00-001-4479
CONTROLLER,AIR PRESSURE,AIRCRAFT
Frequently Asked Questions
What is NSN 1660-00-640-8439?
NSN 1660-00-640-8439 is a Heater,aircraft, manufactured by Surface Combustion Inc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-00-640-8439?
NSN 1660-00-640-8439 has 1 manufacturer part number on file: E93A22 (Surface Combustion Inc).
What are the specifications of E93A22?
Key specifications for E93A22: Heat Delivery Rate: 100000.0 BRITISH THERMAL UNIT; Current Type: DC; Voltage in Volts: 24.0; Heating Element Type: COMBUSTION CHAMBER. 4 specifications are documented in the U.S. Government catalog.
Is NSN 1660-00-640-8439 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
What is the DEMIL code for NSN 1660-00-640-8439?
NSN 1660-00-640-8439 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.