The Restrictor,fluid Flow, cataloged under National Stock Number 4730-00-830-4392, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-830-4392 |
| Item Name | Restrictor,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Length | 1.800 INCHES NOMINAL IN |
| Thread Provision | THREADED LOCATION NOT OTHERWISE SPECIFIED |
| Design Type | TUBULAR, HEX SHAPE |
| Thread Series | NPTF LOCATION NOT OTHERWISE SPECIFIED |
| Thread Length | 0.312 INCHES NOMINAL SECOND PROVISION IN |
| Thread Length | 0.438 INCHES NOMINAL FIRST PROVISION IN |
| Outside Diameter | 0.750 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED |
| Thread Size Designator | 1/4-18 FIRST PROVISION |
| Thread Size Designator | 1/8-27 SECOND PROVISION |
| Surface Treatment | PASSIVATE |
| Material | STEEL COMP 316 |
| Orifice Diameter | 0.060 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 15F2483 | 3/2 Design control — primary reference U.S. Government activity |
| 6F2483 | 5/9 Secondary reference U.S. Government activity |
| 30A4200 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-00-830-4392 is a Restrictor,fluid Flow, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-830-4392: Length: 1.800 INCHES NOMINAL IN; Thread Provision: THREADED LOCATION NOT OTHERWISE SPECIFIED; Design Type: TUBULAR, HEX SHAPE; Thread Series: NPTF LOCATION NOT OTHERWISE SPECIFIED. 13 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.