The Restrictor Unit,fluid Flow, cataloged under National Stock Number 4730-01-474-6968, 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 Ashcroft Inc Dba Heise. Government technical data includes 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-474-6968 |
| Primary Part Number | 25-1112SD |
| Item Name | Restrictor Unit,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Pressure Rating | 15000.000 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Strainer Type and Quantity | 1 SCREEN |
| End Connection Component Type and Size for Which Designed | 1/4 INCH EXTERNAL PIPE; 1/2 INCH INTERNAL PIPE IN |
| Design Type | STRAIGHT |
| Thread Series | NPT SECOND CONNECTION |
| Thread Series | NPT FIRST CONNECTION |
| End Connection Type | THREADED FEMALE SECOND CONNECTION |
| End Connection Type | THREADED MALE, TAPERED PIPE FIRST CONNECTION |
| Valve Size | 0.250 INCHES IN |
| Thread Direction | RIGHT-HAND ALL CONNECTIONS |
| Thread Size Designator | 0.250 FIRST CONNECTION |
| Thread Size Designator | 0.500 SECOND CONNECTION |
| Thread Class | 2A ALL CONNECTIONS A |
| Material | STEEL CORROSION RESISTING SCREENING |
| Material | STEEL CORROSION RESISTING BODY |
| End Connection Similarity | NOT IDENTICAL |
| 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 |
|---|---|
| 25-1112SD PRIMARY | Ashcroft Inc Dba Heise (USA) |
NSN 4730-01-474-6968 is a Restrictor Unit,fluid Flow, manufactured by Ashcroft Inc Dba Heise, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-474-6968 has 1 manufacturer part number on file: 25-1112SD (Ashcroft Inc Dba Heise).
Key specifications for 25-1112SD: Pressure Rating: 15000.000 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Strainer Type and Quantity: 1 SCREEN; End Connection Component Type and Size for Which Designed: 1/4 INCH EXTERNAL PIPE; 1/2 INCH INTERNAL PIPE IN; Design Type: STRAIGHT. 16 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.