The Hose Assembly,air Breathing, cataloged under National Stock Number 4720-01-252-2646, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-252-2646 |
| Item Name | Hose Assembly,air Breathing |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 8.000 INCHES NOMINAL OVERALL IN |
| Connection Type | THREADED BOTH ENDS |
| Style Designator | SLEEVE SECTION |
| Coupling Style | THREADED INTERNAL BOTH ENDS |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.062 INCHES NOMINAL IN |
| Operating Pressure | 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Features Provided | OZONE RESISTANT |
| Nominal Thread Size | 0.500 INCHES BOTH ENDS IN |
| Inside Diameter | 0.250 INCHES NOMINAL FIRST END IN |
| Material | STEEL FIRST END COUPLING |
| Material | PLASTIC FIRST PLY |
| Material | STEEL SECOND END COUPLING |
| Thread Series Designator | UNF 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 |
| Reference | Meaning |
|---|---|
| 124392-5CR-8.00 | 5/9 Secondary reference U.S. Government activity |
| 13000005-8 | 5/1 Secondary reference Smiths Tubular Systems-Laconia, Inc. |
| MIL-PRF-26626 | 4/1 Identification reference U.S. Government activity |
| M26626-5-8 | 2/2 Government specification standardization U.S. Government activity |
| AE1010010F-8 | 5/1 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| 124392-5CR-0080 | 5/1 Secondary reference U.S. Government activity |
| MS24548-5-8 | 5/9 Secondary reference U.S. Government activity |
NSN 4720-01-252-2646 is a Hose Assembly,air Breathing, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
Key specifications for 4720-01-252-2646: Measuring Method and Length: 8.000 INCHES NOMINAL OVERALL IN; Connection Type: THREADED BOTH ENDS; Style Designator: SLEEVE SECTION; Coupling Style: THREADED INTERNAL BOTH ENDS. 14 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.