The Nozzle Assembly, cataloged under National Stock Number 1660-01-112-4997, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-112-4997 |
| Primary Part Number | A51E73011-1 |
| Item Name | Nozzle Assembly |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY QQ-A-250/11,2.000 IN. OD,9.000 IN. O/A LG IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| A51E73011-1 | Northrop Grumman Systems Corporation (USA) |
| A51E73011-1 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| A51E73011-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| A51E73011-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 1660-01-112-4997 is a Nozzle Assembly, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-112-4997 has 2 manufacturer part numbers on file: A51E73011-1 (Northrop Grumman Systems Corporation), A51E73011-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for A51E73011-1: General Characteristics Item Description: ALUMINUM ALLOY QQ-A-250/11,2.000 IN. OD,9.000 IN. O/A LG IN; End Item Identification: AIRCRAFT MODLE F14. 1 specification is 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 1660-01-112-4997 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.