The Hose Assembly,air Breathing, cataloged under National Stock Number 4720-01-428-9852, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Hydraflow. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-428-9852 |
| Primary Part Number | 79215E0124A |
| Item Name | Hose Assembly,air Breathing |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Hydraflow |
| Status | ACTIVE |
| Measuring Method and Length | 12.500 INCHES NOMINAL OVERALL IN |
| Minimum Inside Bending Radius | 1.000 INCHES IN |
| Connection Type | THREADED BOTH ENDS |
| Style Designator | FULLY CONVOLUTED W/ WIRE RINGS BETWEEN CONVOLUTIONS |
| Coupling Style | THREADED INTERNAL BOTH ENDS |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.020 INCHES NOMINAL IN |
| Operating Pressure | 450.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Nominal Thread Size | 0.750 INCHES BOTH ENDS IN |
| Inside Diameter | 0.500 INCHES NOMINAL FIRST END IN |
| Surface Treatment | ANODIZE BOTH END COUPLINGS |
| Material | STEEL CORROSION RESISTING REINFORCING WIRE |
| Material | PLASTIC POLYAMIDE NYLON COVER |
| Material | PLASTIC POLYAMIDE NYLON SECOND PLY |
| Material | ALUMINUM ALLOY BOTH END COUPLINGS |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE FIRST PLY |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) BOTH ENDS |
| 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 |
|---|---|
| 79215E0124A PRIMARY | Hydraflow (USA) |
| Reference | Meaning |
|---|---|
| 7D0440E0124A | 5/2 Secondary reference U.S. Government activity |
| 7D0440 | D/9 Drawing number reference only U.S. Government activity |
NSN 4720-01-428-9852 is a Hose Assembly,air Breathing, manufactured by Hydraflow, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-428-9852 has 1 manufacturer part number on file: 79215E0124A (Hydraflow).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-434-1471. Verify interchangeability with system specifications before substitution.
Key specifications for 79215E0124A: Measuring Method and Length: 12.500 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 1.000 INCHES IN; Connection Type: THREADED BOTH ENDS; Style Designator: FULLY CONVOLUTED W/ WIRE RINGS BETWEEN CONVOLUTIONS. 17 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.