The Air Duct Branch, cataloged under National Stock Number 4720-00-762-8932, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-00-762-8932 |
| Primary Part Number | A51E10226-71 |
| Item Name | Air Duct Branch |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY,QQ-T-70014,0.035 IN. WALL THK,PLASTIC INSULATION,PREBENT DUCT,3.000 IN. OD IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| A51E10226-71 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| A51E10226-71 | Aircraft Tubular Components Inc (USA) |
| Reference | Meaning |
|---|---|
| A51E10226-71 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| A51E10226-71 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
NSN 4720-00-762-8932 is a Air Duct Branch, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-00-762-8932 has 2 manufacturer part numbers on file: A51E10226-71 (Northrop Grumman Systems Corporation), A51E10226-71 (Aircraft Tubular Components Inc).
Key specifications for A51E10226-71: General Characteristics Item Description: ALUMINUM ALLOY,QQ-T-70014,0.035 IN. WALL THK,PLASTIC INSULATION,PREBENT DUCT,3.000 IN. OD IN. 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.
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.