The Flange,bleed Duct,mounting, cataloged under National Stock Number 1560-00-421-4616, is classified within Federal Supply Class 1560 (Airframe Structural Components) of the Aircraft and Airframe Components group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1560-00-421-4616 |
| Primary Part Number | 1128ECM41503-11 |
| Item Name | Flange,bleed Duct,mounting |
| FSC / FSG | 1560 / 15 — Airframe Structural Components |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | 2.140 IN ID,2.290 IN OD,2 HOLES 0.217 IN MIN 0.223 IN MAX DIA IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1128ECM41503-11 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 128ECM41503-11 PRIMARY | Maven Engineering Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1128ECM41503-11 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 1560-00-421-4616 is a Flange,bleed Duct,mounting, manufactured by Northrop Grumman Systems Corporation, classified under FSC 1560, Airframe Structural Components. Status: active.
NSN 1560-00-421-4616 has 2 manufacturer part numbers on file: 1128ECM41503-11 (Northrop Grumman Systems Corporation), 128ECM41503-11 (Maven Engineering Corporation).
Key specifications for 1128ECM41503-11: General Characteristics Item Description: 2.140 IN ID,2.290 IN OD,2 HOLES 0.217 IN MIN 0.223 IN MAX DIA IN. 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.
NSN 1560-00-421-4616 has DEMIL Code B. 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.