The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-399-6310, 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 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-399-6310 |
| Item Name | Restrictor,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Length | 0.138 INCHES NOMINAL IN |
| Thread Provision | THREADED LOCATION NOT OTHERWISE SPECIFIED |
| Design Type | TUBULAR |
| Thread Series | UNF LOCATION NOT OTHERWISE SPECIFIED |
| Thread Length | 0.073 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Outside Diameter | 0.085 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED |
| Thread Size Designator | 1/16-80UNF-3A LOCATION NOT OTHERWISE SPECIFIED A |
| Surface Treatment | PASSIVATE |
| Thread Class | 3A LOCATION NOT OTHERWISE SPECIFIED A |
| Material | STEEL |
| Orifice Diameter | 0.0105 INCHES NOMINAL IN |
| 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 |
|---|---|
| 28003780 | D/9 Drawing number reference only U.S. Government activity |
| 28003780-007 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-399-6310 is a Restrictor,fluid Flow, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-399-6310: Length: 0.138 INCHES NOMINAL IN; Thread Provision: THREADED LOCATION NOT OTHERWISE SPECIFIED; Design Type: TUBULAR; Thread Series: UNF LOCATION NOT OTHERWISE SPECIFIED. 12 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.