The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-00-640-5744, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4720-00-640-5744 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 60.000 INCHES NOMINAL EXCLUDING END FITTINGS IN |
| Connection Style | PLAIN OPTIONAL END FIRST END |
| End Connection Design | STRAIGHT FIRST END |
| Layer Composition and Location | 1ST LAYER RUBBER IMPREGNATED COTTON FABRIC AND 2ND LAYER RUBBER IMPREGNATED COTTON FABRIC AND 3RD LAYER RUBBER IMPREGNATED COTTON FABRIC AND OUTER LAYER MOLDED RUBBER |
| Connection Type | THREADED INTERNAL PIPE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 1.406 INCHES NOMINAL IN |
| Operating Pressure | 145.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| End Fitting Component and Material | COMPLETE FITTING COPPER ALLOY ALL ENDS |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Inside Diameter | 0.750 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | ACID SINGLE RESPONSE |
| Outer Covering Environmental Protection | ACID RESISTANT |
| Thread Series Designator | NPT FIRST END |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY LENGTH |
| 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 |
|---|---|
| 3600-12REVAPC9 | 5/1 Secondary reference U.S. Government activity |
| 3600-12PC9 | 3/1 Design control — primary reference U.S. Government activity |
NSN 4720-00-640-5744 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): 4720-00-640-5805. Verify interchangeability with system specifications before substitution.
Key specifications for 4720-00-640-5744: Measuring Method and Length: 60.000 INCHES NOMINAL EXCLUDING END FITTINGS IN; Connection Style: PLAIN OPTIONAL END FIRST END; End Connection Design: STRAIGHT FIRST END; Layer Composition and Location: 1ST LAYER RUBBER IMPREGNATED COTTON FABRIC AND 2ND LAYER RUBBER IMPREGNATED COTTON FABRIC AND 3RD LAYER RUBBER IMPREGNATED COTTON FABRIC AND OUTER LAYER MOLDED RUBBER. 17 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.