The Duct,ram Air Cooling, cataloged under National Stock Number 1560-01-026-4550, is classified within Federal Supply Class 1560 (Airframe Structural Components) of the Aircraft and Airframe Components group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1560-01-026-4550 |
| Item Name | Duct,ram Air Cooling |
| FSC / FSG | 1560 / 15 — Airframe Structural Components |
| Status | ACTIVE |
| General Characteristics Item Description | FOUR HOLES 0.250 IN. DIA IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 18-54437-13 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 18-54437-1 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
| 18-54437-1 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
NSN 1560-01-026-4550 is a Duct,ram Air Cooling, classified under FSC 1560, Airframe Structural Components. Status: active.
Key specifications for 1560-01-026-4550: General Characteristics Item Description: FOUR HOLES 0.250 IN. DIA IN; End Item Identification: AIRCRAFT,MODEL F5. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
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.