The Insulation Pipe Covering,thermal, cataloged under National Stock Number 1660-01-344-2487, 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 The Boeing Company Div Defense. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-344-2487 |
| Primary Part Number | 74A837390-1011 |
| Item Name | Insulation Pipe Covering,thermal |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Layer Quantity | 1 |
| Temp Rating | -65.0 FAHRENHEIT MINIMUM AND 210.0 FAHRENHEIT MAXIMUM DEGF |
| Material | ALUMINUM JACKET |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 74A837390-1011 | Hi-Temp Insulation Inc Dba Hi-Temp Insulation Inc (USA) |
| 74A837390-1011 | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| 74A837390-1011 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 10130496 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 74A37390-1011 | 5/9 Secondary reference Hi-Temp Insulation Inc Dba Hi-Temp Insulation Inc |
NSN 1660-01-344-2487 is a Insulation Pipe Covering,thermal, manufactured by The Boeing Company Div Defense, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-344-2487 has 3 manufacturer part numbers on file: 74A837390-1011 (Hi-Temp Insulation Inc Dba Hi-Temp Insulation Inc), 74A837390-1011 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems), 74A837390-1011 (The Boeing Company Div Defense).
Key specifications for 74A837390-1011: Layer Quantity: 1; Temp Rating: -65.0 FAHRENHEIT MINIMUM AND 210.0 FAHRENHEIT MAXIMUM DEGF; End Item Identification: F-18 AIRCRAFT; Material: ALUMINUM JACKET. 3 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1660-01-344-2487 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.