The Restrictor Unit,fluid Flow, cataloged under National Stock Number 4730-01-541-5710, 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 Naval Sea Systems Command. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-541-5710 |
| Primary Part Number | 801-6640811 ASSY 135-08 |
| Item Name | Restrictor Unit,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Flow Rate and Fluid Type | 850.0 GALLONS PER MINUTE WATER |
| Pressure Rating | 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Strainer Type and Quantity | PLATE CARTRIDGE 1 |
| Design Type | STRAIGHT |
| End Connection Type | FLANGE ALL CONNECTIONS |
| Criticality Code Justification | FEAT |
| Valve Size | 6.000 INCHES IN |
| Operating Temp Range | +32.0 TO 85.0 FAHRENHEIT DEGF |
| Material | COPPER ALLOY 706 BODY |
| Orifice Diameter | 1.250 INCHES NOMINAL IN |
| End Connection Similarity | NOT IDENTICAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 801-6640811 ASSY 135-08 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 2633-561-01 ASSY 135-08 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-541-5710 is a Restrictor Unit,fluid Flow, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-541-5710 has 1 manufacturer part number on file: 801-6640811 ASSY 135-08 (Naval Sea Systems Command).
Key specifications for 801-6640811 ASSY 135-08: Flow Rate and Fluid Type: 850.0 GALLONS PER MINUTE WATER; Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Strainer Type and Quantity: PLATE CARTRIDGE 1; Design Type: STRAIGHT. 11 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.
NSN 4730-01-541-5710 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.