The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-375-1912, 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 DC Fabricators Inc. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-375-1912 |
| Primary Part Number | EW-26S |
| Item Name | Restrictor,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | DC Fabricators Inc |
| Status | ACTIVE |
| Length | 1.188 INCHES NOMINAL IN |
| Thread Provision | THREADED FIRST PROVISION |
| Thread Provision | THREADED SECOND PROVISION |
| Design Type | TUBULAR |
| Thread Series | UNEF FIRST PROVISION |
| Thread Series | UNEF SECOND PROVISION |
| Outside Diameter | 1.155 INCHES NOMINAL IN |
| Thread Size Designator | 3/4-20 FIRST PROVISION |
| Thread Size Designator | 3/4-20 SECOND PROVISION |
| Thread Class | 3A SECOND PROVISION A |
| Thread Class | 3B FIRST PROVISION |
| Material | COPPER |
| Orifice Diameter | 0.125 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 |
|---|---|
| EW-26S PRIMARY | DC Fabricators Inc (USA) |
| Reference | Meaning |
|---|---|
| EW-26 | D/9 Drawing number reference only DC Fabricators Inc |
NSN 4730-01-375-1912 is a Restrictor,fluid Flow, manufactured by DC Fabricators Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-375-1912 has 1 manufacturer part number on file: EW-26S (DC Fabricators Inc).
Key specifications for EW-26S: Length: 1.188 INCHES NOMINAL IN; Thread Provision: THREADED FIRST PROVISION; Thread Provision: THREADED SECOND PROVISION; Design Type: TUBULAR. 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.