The Restrictor,fluid Flow, cataloged under National Stock Number 4730-00-366-6254, 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 Wisconsin Motors, Llc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-366-6254 |
| Primary Part Number | RF1143 |
| Item Name | Restrictor,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Wisconsin Motors, Llc |
| Status | ACTIVE |
| Length | 0.469 INCHES NOMINAL IN |
| Thread Provision | THREADED LOCATION NOT OTHERWISE SPECIFIED |
| Design Type | TUBULAR, HEX SHAPE |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED |
| Thread Length | 0.250 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Hose/tube Size for Which Designed | 1/8 IN.OD TUBE IN |
| Outside Diameter | 0.281 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED |
| Thread Size Designator | 1/4-20 LOCATION NOT OTHERWISE SPECIFIED |
| Thread Class | 2A LOCATION NOT OTHERWISE SPECIFIED A |
| Material | STEEL |
| Orifice Diameter | 0.060 INCHES MINIMUM AND 0.115 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 |
| Part Number | Manufacturer |
|---|---|
| 3-0RF1143-158 | Asphalt Equipment Co Inc (USA) |
| 3-02RF1143-18 | Asphalt Equipment Co Inc (USA) |
| RF1143 PRIMARY | Wisconsin Motors, Llc (USA) |
NSN 4730-00-366-6254 is a Restrictor,fluid Flow, manufactured by Wisconsin Motors, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-366-6254 has 3 manufacturer part numbers on file: 3-0RF1143-158 (Asphalt Equipment Co Inc), 3-02RF1143-18 (Asphalt Equipment Co Inc), RF1143 (Wisconsin Motors, Llc).
Key specifications for RF1143: Length: 0.469 INCHES NOMINAL IN; Thread Provision: THREADED LOCATION NOT OTHERWISE SPECIFIED; Design Type: TUBULAR, HEX SHAPE; Thread Series: UNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED. 12 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.