The Hose,air Breathing, cataloged under National Stock Number 4720-01-610-2156, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Leonardo Spa Aeronautics Division - Pomigliano D'arco Site. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4720-01-610-2156 |
| Primary Part Number | MS22055H14 |
| Item Name | Hose,air Breathing |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Leonardo Spa Aeronautics Division - Pomigliano D'arco Site |
| Status | ACTIVE |
| Hose Weight | 5.000 OUNCES PER LINEAR FOOT OZ |
| Measuring Method and Length | 14.000 INCHES NOMINAL OVERALL IN |
| Connection Style | ROUND FIRST END |
| Connection Type | SOFT BOTH ENDS |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | ROUNDROUND |
| Outside Diameter | 1.094 INCHES MINIMUM AND 1.250 INCHES MAXIMUM BOTH ENDS IN |
| Features Provided | OZONE RESISTANT |
| Inside Diameter | 0.750 INCHES MINIMUM BOTH ENDS IN |
| End Overall Length | 0.938 INCHES MINIMUM AND 1.062 INCHES MAXIMUM SECOND END IN |
| End Inside Diameter | 0.844 INCHES MINIMUM AND 0.875 INCHES MAXIMUM FIRST END IN |
| Material | STEEL REINFORCING WIRE |
| Material | COTTON AND FIBERGLASS FIRST PLY |
| 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 |
|---|---|
| MS22055H14 | Leonardo Spa Aeronautics Division - Pomigliano D'arco Site (ITA) |
| Reference | Meaning |
|---|---|
| MS22055H14 | 2/2 Government specification standardization U.S. Government activity |
| MIL-DTL-81581 | 4/1 Identification reference U.S. Government activity |
NSN 4720-01-610-2156 is a Hose,air Breathing, manufactured by Leonardo Spa Aeronautics Division - Pomigliano D'arco Site, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-610-2156 has 1 manufacturer part number on file: MS22055H14 (Leonardo Spa Aeronautics Division - Pomigliano D'arco Site).
Key specifications for MS22055H14: Hose Weight: 5.000 OUNCES PER LINEAR FOOT OZ; Measuring Method and Length: 14.000 INCHES NOMINAL OVERALL IN; Connection Style: ROUND FIRST END; Connection Type: SOFT BOTH ENDS. 13 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.