The Restrictor Unit,fluid Flow, cataloged under National Stock Number 4730-01-022-8780, 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 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-022-8780 |
| Item Name | Restrictor Unit,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flow Rate and Fluid Type | 11.0 GALLONS PER MINUTE OIL |
| Pressure Rating | 1500.0 POUNDS PER SQUARE INCH (PSI) MINIMUM LBS |
| Strainer Type and Quantity | 1 FILTER |
| End Connection Component Type and Size for Which Designed | 9/64 IN. OD TUBE IN |
| Design Type | STRAIGHT |
| Thread Series | UNF ALL CONNECTIONS |
| End Connection Type | THREADED MALE, GASKET SEAL ALL CONNECTIONS |
| Diameter | 0.203 INCHES NOMINAL IN |
| Valve Size | 0.500 INCHES IN |
| Thread Direction | RIGHT-HAND ALL CONNECTIONS |
| Thread Size Designator | 0.750-16 ALL CONNECTIONS |
| Thread Class | 3A ALL CONNECTIONS A |
| Material | STEEL CORROSION RESISTING BODY |
| Material | STEEL CORROSION RESISTING FILTER |
| End Connection Similarity | IDENTICAL |
| 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 |
|---|---|
| 28003208 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-022-8780 is a Restrictor Unit,fluid Flow, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4720-01-188-5886. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-022-8780: Flow Rate and Fluid Type: 11.0 GALLONS PER MINUTE OIL; Pressure Rating: 1500.0 POUNDS PER SQUARE INCH (PSI) MINIMUM LBS; Strainer Type and Quantity: 1 FILTER; End Connection Component Type and Size for Which Designed: 9/64 IN. OD TUBE IN. 15 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.