The Hose,air Breathing, cataloged under National Stock Number 4720-01-359-6526, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-359-6526 |
| Item Name | Hose,air Breathing |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 30.000 INCHES NOMINAL OVERALL IN |
| Connection Type | FLANGE BOTH ENDS |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | ROUNDROUND |
| Wall Thickness | 0.125 INCHES NOMINAL0.125 INCHES NOMINAL IN |
| End Inside Width | 0.875 INCHES NOMINAL BOTH ENDS IN |
| Inside Diameter | 0.625 INCHES NOMINAL FIRST END IN |
| End Overall Length | 0.750 INCHES NOMINAL BOTH ENDS IN |
| Material | COTTON FIRST PLY |
| Material | STEEL REINFORCING WIRE |
| Material | COTTON SECOND PLY |
| Material | PLASTIC POLYAMIDE NYLON THIRD 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 |
|---|---|
| MIL-PRF-26385 | 4/1 Identification reference U.S. Government activity |
| MS27797 | 5/9 Secondary reference U.S. Government activity |
| MS27797-10-300 | 2/2 Government specification standardization U.S. Government activity |
NSN 4720-01-359-6526 is a Hose,air Breathing, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 4720-01-363-9315, 4720-01-516-6396, 4720-01-518-3379. Verify interchangeability with system specifications before substitution.
Key specifications for 4720-01-359-6526: Measuring Method and Length: 30.000 INCHES NOMINAL OVERALL IN; Connection Type: FLANGE BOTH ENDS; Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED; Cross-Sectional Shape Style: ROUNDROUND. 12 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.