The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-645-1822, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-645-1822 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 21.0 FEET NOMINAL OVERALL FT |
| Connection Style | PLAIN OPTIONAL END ALL ENDS |
| Nominal Inside Diameter Hose Accommodated | 0.500 INCHES ALL ENDS IN |
| End Connection Design | STRAIGHT ALL ENDS |
| Connection Type | THREADED INTERNAL HOSE ALL ENDS |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.830 INCHES NOMINAL IN |
| Operating Pressure | 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| End Fitting Component and Material | COMPLETE FITTING STEEL COMP 304 ALL ENDS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.813 INCHES ALL ENDS IN |
| Inside Diameter | 0.500 INCHES NOMINAL IN |
| Media for Which Designed | HYDRAULIC FLUID SINGLE RESPONSE |
| Thread Quantity Per Inch | 16 ALL ENDS |
| Thread Series Designator | UNF ALL ENDS |
| 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 |
|---|---|
| 525787-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4720-01-645-1822 is a Hose Assembly,nonmetallic, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
Key specifications for 4720-01-645-1822: Measuring Method and Length: 21.0 FEET NOMINAL OVERALL FT; Connection Style: PLAIN OPTIONAL END ALL ENDS; Nominal Inside Diameter Hose Accommodated: 0.500 INCHES ALL ENDS IN; End Connection Design: STRAIGHT ALL ENDS. 15 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.