The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-511-7778, 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 23 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-511-7778 |
| Primary Part Number | 533-6404893 ASSY 92 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Measuring Method and Length | 25.0 FEET NOMINAL EXCLUDING END FITTINGS FT |
| Temp Rating | 100.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Connection Style | PLAIN SECOND END |
| Connection Style | SWIVEL NUT, GASKET SEAL FIRST END |
| End Connection Design | STRAIGHT FIRST END |
| End Connection Design | STRAIGHT SECOND END |
| Criticality Code Justification | FEAT |
| Layer Composition and Location | OUTER LAYER WOVEN COTTON CORD |
| Connection Type | THREADED INTERNAL HOSE FIRST END |
| Connection Type | THREADED EXTERNAL HOSE SECOND END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 1.530 INCHES MINIMUM AND 1.580 INCHES MAXIMUM IN |
| Operating Pressure | 90.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Thread Direction | RIGHT-HAND SECOND END |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 1.500 INCHES FIRST END IN |
| Nominal Thread Size | 1.500 INCHES SECOND END IN |
| Inside Diameter | 1.500 INCHES MINIMUM IN |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | WATER SINGLE RESPONSE |
| Burst Test Pressure | 600.0 POUNDS PER SQUARE INCH LBS |
| Thread Series Designator | NPSH FIRST END |
| Thread Series Designator | NPSH SECOND END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| DF2350-1781-92 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 533-7067567-F204 | Naval Sea Systems Command (USA) |
| 533-6404893 ASSY 92 PRIMARY | Naval Sea Systems Command (USA) |
| 505-7015981-50 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6404893 | D/9 Drawing number reference only Naval Sea Systems Command |
| H654-1606-F204 | 5/2 Secondary reference U.S. Government activity |
| H917-3201-50 | 5/2 Secondary reference U.S. Government activity |
NSN 4720-01-511-7778 is a Hose Assembly,nonmetallic, manufactured by Naval Sea Systems Command, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-511-7778 has 4 manufacturer part numbers on file: DF2350-1781-92 (Huntington Ingalls Inc Div Newport News Shipbuilding), 533-7067567-F204 (Naval Sea Systems Command), 533-6404893 ASSY 92 (Naval Sea Systems Command), 505-7015981-50 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-514-9627. Verify interchangeability with system specifications before substitution.
Key specifications for 533-6404893 ASSY 92: Measuring Method and Length: 25.0 FEET NOMINAL EXCLUDING END FITTINGS FT; Temp Rating: 100.0 FAHRENHEIT SINGLE RESPONSE DEGF; Connection Style: PLAIN SECOND END; Connection Style: SWIVEL NUT, GASKET SEAL FIRST END. 23 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.