The Hose,air Breathing, cataloged under National Stock Number 4720-00-471-1932, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-00-471-1932 |
| Item Name | Hose,air Breathing |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 18.000 INCHES NOMINAL OVERALL IN |
| Connection Style | ROUND FIRST END |
| Connection Type | THREADED FIRST END |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Material Document and Classification | QQ-W-423,FORM 1,COMP 302,COND 3 FED SPEC SINGLE MATERIAL RESPONSE REINFORCING WIRE |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.094 INCHES NOMINAL IN |
| Operating Pressure | 25.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Features Provided | OZONE RESISTANT |
| Inside Diameter | 0.625 INCHES NOMINAL FIRST END IN |
| End Overall Length | 0.750 INCHES NOMINAL FIRST END IN |
| End Inside Diameter | 0.625 INCHES NOMINAL FIRST END IN |
| Material | STEEL CORROSION RESISTING REINFORCING WIRE |
| Material | COTTON AND RUBBER BUTYL FIRST PLY |
| Material | PLASTIC SECOND PLY |
| 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 |
|---|---|
| MS27797-10-180 | 5/1 Secondary reference R.e. Darling Co., Inc. |
| REDAR-A10673-03 | 3/1 Design control — primary reference R.e. Darling Co., Inc. |
NSN 4720-00-471-1932 is a Hose,air Breathing, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
Key specifications for 4720-00-471-1932: Measuring Method and Length: 18.000 INCHES NOMINAL OVERALL IN; Connection Style: ROUND FIRST END; Connection Type: THREADED FIRST END; Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED. 15 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.