The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-00-289-7989, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 24 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4720-00-289-7989 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 300.000 INCHES NOMINAL EXCLUDING END FITTINGS IN |
| Temp Rating | 388.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Connection Style | PLAIN OPTIONAL END FIRST END |
| Connection Style | PLAIN SECOND END |
| End Connection Design | STRAIGHT FIRST END |
| End Connection Design | STRAIGHT SECOND END |
| Layer Composition and Location | 1ST LAYER RUBBER IMPREGNATED BRAIDED STEEL WIRE AND 2ND LAYER RUBBER IMPREGNATED BRAIDED STEEL WIRE AND OUTER LAYER MOLDED RUBBER, SYNTHETIC AND OUTER LAYER MOLDED RUBBER, NATURAL |
| Connection Type | THREADED INTERNAL PIPE FIRST END |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 1.937 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND SECOND END |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 1.250 INCHES FIRST END IN |
| Nominal Thread Size | 1.250 INCHES SECOND END IN |
| Inside Diameter | 1.250 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | STEAM SINGLE RESPONSE |
| Hydrostatic Test Pressure | 1250.0 POUNDS PER SQUARE INCH LBS |
| Burst Test Pressure | 2000.0 POUNDS PER SQUARE INCH LBS |
| Thread Quantity Per Inch | 11-1/2 FIRST END |
| Thread Quantity Per Inch | 11-1/2 SECOND END |
| Thread Series Designator | NPT SECOND END |
| Thread Series Designator | NPT FIRST 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-H-28596 | 4/1 Identification reference U.S. Government activity |
| M285961A425 | 2/2 Government specification standardization U.S. Government activity |
NSN 4720-00-289-7989 is a Hose Assembly,nonmetallic, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4720-00-289-7990. Verify interchangeability with system specifications before substitution.
Key specifications for 4720-00-289-7989: Measuring Method and Length: 300.000 INCHES NOMINAL EXCLUDING END FITTINGS IN; Temp Rating: 388.0 FAHRENHEIT SINGLE RESPONSE DEGF; Connection Style: PLAIN OPTIONAL END FIRST END; Connection Style: PLAIN SECOND END. 24 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.