The Hose,nonmetallic, cataloged under National Stock Number 4720-01-423-6551, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4720-01-423-6551 |
| Item Name | Hose,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 120.000 INCHES MINIMUM OVERALL AND 144.000 INCHES MAXIMUM OVERALL IN |
| Temp Rating | -32.0 CELSIUS SINGLE RESPONSE DEGC |
| Minimum Inside Bending Radius | 16.000 INCHES IN |
| Layer Composition and Location | 1ST LAYER BRAIDED FIBER AND 2ND LAYER BRAIDED FIBER AND OUTER LAYER MOLDED RUBBER, ETHYLENE PROPYLENE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 4.750 INCHES NOMINAL IN |
| Operating Pressure | 75.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Exterior Color | TAN |
| Specification/standard Data | 81348-MIL-H-370 GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | 2 TYPE AND 9 SIZE |
| Inside Diameter | 4.000 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Hydrostatic Test Pressure | 150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS |
| Burst Test Pressure | 300.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS |
| Outer Covering Environmental Protection | OZONE RESISTANT AND FUEL RESISTANT |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR TUBE |
| 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 |
|---|---|
| M370B090O0110 | 2/2 Government specification standardization U.S. Government activity |
| MIL-PRF-370 | 4/1 Identification reference U.S. Government activity |
NSN 4720-01-423-6551 is a Hose,nonmetallic, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
Key specifications for 4720-01-423-6551: Measuring Method and Length: 120.000 INCHES MINIMUM OVERALL AND 144.000 INCHES MAXIMUM OVERALL IN; Temp Rating: -32.0 CELSIUS SINGLE RESPONSE DEGC; Minimum Inside Bending Radius: 16.000 INCHES IN; Layer Composition and Location: 1ST LAYER BRAIDED FIBER AND 2ND LAYER BRAIDED FIBER AND OUTER LAYER MOLDED RUBBER, ETHYLENE PROPYLENE. 16 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.