The Hose Assembly,air Breathing, cataloged under National Stock Number 4720-01-344-9130, 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14 specifications, cited from the U.S. Government catalog. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-344-9130 |
| Item Name | Hose Assembly,air Breathing |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 23.000 INCHES NOMINAL OVERALL IN |
| Temp Rating | -65.0 FAHRENHEIT AND 260.0 FAHRENHEIT DEGF |
| Minimum Inside Bending Radius | 2.000 INCHES IN |
| Connection Style | ROUND SECOND END |
| Connection Type | THREADED SECOND END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.390 INCHES NOMINAL BOTH ENDS IN |
| Operating Pressure | 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Nominal Thread Size | 0.500 INCHES SECOND END IN |
| Specification/standard Data | 81349-MIL-H-26626 GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | 5 SIZE |
| Inside Diameter | 0.260 INCHES NOMINAL BOTH ENDS IN |
| Thread Class | 3B SECOND END |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SECOND END |
| 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 |
|---|---|
| MIL-PRF-26626 | 4/1 Identification reference U.S. Government activity |
| 124392-5CR-0230 | 5/1 Secondary reference U.S. Government activity |
| AE1010010 | D/9 Drawing number reference only Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| MS24548-5-23 | 5/9 Secondary reference U.S. Government activity |
| AE1010010F0230 | 5/1 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| 124392-5CR-23 | 5/9 Secondary reference U.S. Government activity |
| M26626-5-23 | 2/2 Government specification standardization U.S. Government activity |
| MIL-H-26626 | 5/9 Secondary reference U.S. Government activity |
| MS24548-5-23 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4720-01-344-9130 is a Hose Assembly,air Breathing, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4720-01-498-2265, 4720-01-498-2266. Verify interchangeability with system specifications before substitution.
Key specifications for 4720-01-344-9130: Measuring Method and Length: 23.000 INCHES NOMINAL OVERALL IN; Temp Rating: -65.0 FAHRENHEIT AND 260.0 FAHRENHEIT DEGF; Minimum Inside Bending Radius: 2.000 INCHES IN; Connection Style: ROUND SECOND END. 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.