The Hose,air Duct, cataloged under National Stock Number 4720-01-650-1256, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4720-01-650-1256 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Cross-Sectional Shape Style | ROUND |
| Inside Diameter | 5.000 INCHES MINIMUM AND 5.125 INCHES MAXIMUM BOTH ENDS IN |
| Material | PLASTIC ARAMID ALL PLIES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| M32107/18-12-W | 5/9 Secondary reference U.S. Government activity |
| M32107/18-12-W | 2/2 Government specification standardization U.S. Government activity |
| MIL-PRF-32107/18 | 4/1 Identification reference U.S. Government activity |
NSN 4720-01-650-1256 is a Hose,air Duct, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
Key specifications for 4720-01-650-1256: Cross-Sectional Shape Style: ROUND; Inside Diameter: 5.000 INCHES MINIMUM AND 5.125 INCHES MAXIMUM BOTH ENDS IN; Special Features: PERMEABILITY RANGE: 15; Part Name Assigned by Controlling Agency: HOSE, AIR DUCT ADAPTER, ROUND. 3 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.