The Restrictor Unit,fluid Flow, cataloged under National Stock Number 4730-00-540-0818, 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 Saf Industries Llc Dba Saf Industries Llc Div Garkenyon. Government technical data includes 18 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 | 4730-00-540-0818 |
| Primary Part Number | 2R1441-1828 |
| Item Name | Restrictor Unit,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Saf Industries Llc Dba Saf Industries Llc Div Garkenyon |
| Status | ACTIVE |
| FSC Application Data | HYDRAULIC SYSTEM,AIRCRAFT |
| Pressure Rating | 300.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Width Across Flats | 0.750 INCHES NOMINAL IN |
| Strainer Type and Quantity | 2 FILTER |
| End Connection Component Type and Size for Which Designed | U/W 1/4 IN. OD TUBE IN |
| Design Type | STRAIGHT |
| Thread Series | UNF LOCATION NOT OTHERWISE SPECIFIED |
| End Connection Type | THREADED MALE LOCATION NOT OTHERWISE SPECIFIED |
| Valve Size | 0.250 INCHES IN |
| Thread Direction | RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED |
| Thread Size Designator | 7/16-20 LOCATION NOT OTHERWISE SPECIFIED |
| Operating Temp Range | -65.0 TO 250.0 FAHRENHEIT DEGF |
| Thread Class | 3A LOCATION NOT OTHERWISE SPECIFIED A |
| Material | RUBBER SYNTHETIC PACKING |
| Material | STEEL CORROSION RESISTING FILTER |
| Material | ALUMINUM ALLOY BODY |
| End Connection Similarity | IDENTICAL |
| Compression Type | ERMETO LOCATION NOT OTHERWISE SPECIFIED |
| 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 |
|---|---|
| 2R1441-1828 PRIMARY | Saf Industries Llc Dba Saf Industries Llc Div Garkenyon (USA) |
NSN 4730-00-540-0818 is a Restrictor Unit,fluid Flow, manufactured by Saf Industries Llc Dba Saf Industries Llc Div Garkenyon, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-540-0818 has 1 manufacturer part number on file: 2R1441-1828 (Saf Industries Llc Dba Saf Industries Llc Div Garkenyon).
Key specifications for 2R1441-1828: FSC Application Data: HYDRAULIC SYSTEM,AIRCRAFT; Pressure Rating: 300.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Width Across Flats: 0.750 INCHES NOMINAL IN; Strainer Type and Quantity: 2 FILTER. 18 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.