The Restrictor Unit,fluid Flow, cataloged under National Stock Number 4730-00-593-5969, 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 Northrop Grumman Systems Corporation. Government technical data includes 14 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 | 4730-00-593-5969 |
| Primary Part Number | 177586-50 |
| Item Name | Restrictor Unit,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Flow Rate and Fluid Type | 0.216 GALLONS PER MINUTE OIL |
| Pressure Rating | 4500.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Width Across Flats | 0.625 INCHES NOMINAL IN |
| Strainer Type and Quantity | 2 FILTER |
| End Connection Component Type and Size for Which Designed | U/W 0.312 IN. OD TUBE IN |
| Design Type | STRAIGHT |
| Thread Series | UNF ALL CONNECTIONS |
| End Connection Type | THREADED FEMALE, GASKET SEAL ALL CONNECTIONS |
| Valve Size | 0.312 INCHES IN |
| Thread Direction | RIGHT-HAND ALL CONNECTIONS |
| Thread Size Designator | 0.500-20 ALL CONNECTIONS |
| Thread Class | 3B ALL CONNECTIONS |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 177586-50 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 4730-00-593-5969 is a Restrictor Unit,fluid Flow, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-593-5969 has 1 manufacturer part number on file: 177586-50 (Northrop Grumman Systems Corporation).
Key specifications for 177586-50: Flow Rate and Fluid Type: 0.216 GALLONS PER MINUTE OIL; Pressure Rating: 4500.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Width Across Flats: 0.625 INCHES NOMINAL IN; Strainer Type and Quantity: 2 FILTER. 14 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.