The Hose Assembly,air Duct, cataloged under National Stock Number 4720-01-593-2680, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Army, United States Department of the Dba Diorectorate of Production Engineering Div Tobyhanna Army Depot. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-593-2680 |
| Primary Part Number | A1-43999D |
| Item Name | Hose Assembly,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Army, United States Department of the Dba Diorectorate of Production Engineering Div Tobyhanna Army Depot |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4720-01-593-2680 is a Hose Assembly,air Duct, manufactured by Army, United States Department of the Dba Diorectorate of Production Engineering Div Tobyhanna Army Depot, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-593-2680 has 2 manufacturer part numbers on file: 21501 (Mark G. Miller, Inc Dba Select Engineering Services), A1-43999D (Army, United States Department of the Dba Diorectorate of Production Engineering Div Tobyhanna Army Depot).
Key specifications for A1-43999D: Part Name Assigned by Controlling Agency: INTAKE DUCT; End Item Identification: AN/TPS75. 0 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.
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.