The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-465-3591, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-465-3591 |
| Primary Part Number | 6404893-ASSY79 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Measuring Method and Length | 25.000 FEET NOMINAL EXCLUDING END FITTINGS FT |
| Connection Style | SWIVEL NUT, GASKET SEAL FIRST END |
| End Connection Design | STRAIGHT FIRST END |
| Connection Type | THREADED INTERNAL HOSE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Thread Direction | RIGHT-HAND FIRST END |
| Inside Diameter | 0.750 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | WATER, FRESH SINGLE RESPONSE |
| Hydrostatic Test Pressure | 300.0 POUNDS PER SQUARE INCH LBS |
| Burst Test Pressure | 600.0 POUNDS PER SQUARE INCH LBS |
| Thread Quantity Per Inch | 11-1/2 FIRST END |
| Thread Series Designator | NH 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 |
| Part Number | Manufacturer |
|---|---|
| DF2350-1781-ASSY79 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 211095633 | Naval Sea Systems Command (USA) |
| 6404893-ASSY79 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 211095633A | 5/2 Secondary reference U.S. Government activity |
| 533-6404893 | D/9 Drawing number reference only Naval Sea Systems Command |
| 533-6404893 ASSY 79 | 5/9 Secondary reference U.S. Government activity |
| DF-2350-1781 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4720-01-465-3591 is a Hose Assembly,nonmetallic, manufactured by Naval Sea Systems Command, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-465-3591 has 3 manufacturer part numbers on file: DF2350-1781-ASSY79 (Huntington Ingalls Inc Div Newport News Shipbuilding), 211095633 (Naval Sea Systems Command), 6404893-ASSY79 (Naval Sea Systems Command).
3 possible matches (shared part number, not a government interchangeability claim): 4720-01-465-3600, 4730-01-514-9627, 4820-01-678-6534. Verify interchangeability with system specifications before substitution.
Key specifications for 6404893-ASSY79: Measuring Method and Length: 25.000 FEET NOMINAL EXCLUDING END FITTINGS FT; Connection Style: SWIVEL NUT, GASKET SEAL FIRST END; End Connection Design: STRAIGHT FIRST END; Connection Type: THREADED INTERNAL HOSE FIRST 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.