The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-378-4163, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Sfc Valve Corporation. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-378-4163 |
| Primary Part Number | 1057-02-040 |
| Item Name | Restrictor,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sfc Valve Corporation |
| Status | ACTIVE |
| Thread Provision | UNTHREADED SINGLE PROVISION |
| Design Type | PLATE |
| Hose/tube Size for Which Designed | 1/4 IN. OD TUBE IN |
| Outside Diameter | 0.750 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Orifice Diameter | 0.040 INCHES NOMINAL IN |
| 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 |
|---|---|
| 803-5001057-SX-040-02 | Naval Sea Systems Command (USA) |
| 1057-02-040 PRIMARY | Sfc Valve Corporation (USA) |
| Reference | Meaning |
|---|---|
| 803-5001057 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4730-01-378-4163 is a Restrictor,fluid Flow, manufactured by Sfc Valve Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-378-4163 has 2 manufacturer part numbers on file: 803-5001057-SX-040-02 (Naval Sea Systems Command), 1057-02-040 (Sfc Valve Corporation).
Key specifications for 1057-02-040: Thread Provision: UNTHREADED SINGLE PROVISION; Design Type: PLATE; Hose/tube Size for Which Designed: 1/4 IN. OD TUBE IN; Outside Diameter: 0.750 INCHES NOMINAL IN. 6 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.