The Restrictor Unit,fluid Flow, cataloged under National Stock Number 4730-00-889-9602, 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 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-889-9602 |
| Primary Part Number | 9R1641-1 |
| 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 | RESTRICTOR UNIT,FLUID FLOW,AIRBORNE |
| Pressure Rating | 250.0 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 ALL CONNECTIONS |
| End Connection Type | THREADED MALE, REGULAR FLARE 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 300.0 FAHRENHEIT DEGF |
| Thread Class | 3A LOCATION NOT OTHERWISE SPECIFIED A |
| Unable to Decode | UNABLE TO DECODE |
| Material | RUBBER SYNTHETIC PACKING |
| Material | COPPER ALLOY FILTER |
| Material | ALUMINUM ALLOY BODY |
| Orifice Diameter | 0.078 INCHES NOMINAL IN |
| End Connection Similarity | IDENTICAL |
| Angle Between Connections | 37.00 DEGREES NOMINAL 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 |
|---|---|
| 9R1641-1 PRIMARY | Saf Industries Llc Dba Saf Industries Llc Div Garkenyon (USA) |
| Reference | Meaning |
|---|---|
| 658073-1 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-00-889-9602 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 4730-00-889-9602 has 1 manufacturer part number on file: 9R1641-1 (Saf Industries Llc Dba Saf Industries Llc Div Garkenyon).
Key specifications for 9R1641-1: FSC Application Data: RESTRICTOR UNIT,FLUID FLOW,AIRBORNE; Pressure Rating: 250.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Width Across Flats: 0.750 INCHES NOMINAL IN; Strainer Type and Quantity: 2 FILTER. 20 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.