The Restrictor,fluid Flow, cataloged under National Stock Number 4730-00-411-9477, 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12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-00-411-9477 |
| Item Name | Restrictor,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Length | 0.313 INCHES NOMINAL IN |
| Thread Provision | THREADED FIRST PROVISION |
| Design Type | TUBULAR |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) FIRST PROVISION |
| Thread Length | 0.237 INCHES NOMINAL FIRST PROVISION IN |
| Outside Diameter | 0.313 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND FIRST PROVISION |
| Thread Size Designator | 5/16 IN.-18 FIRST PROVISION IN |
| Surface Treatment | PASSIVATE |
| Thread Class | 3 FIRST PROVISION |
| Material | STEEL CORROSION RESISTING |
| Orifice Diameter | 0.039 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 |
|---|---|
| 10086140 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 2584614-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-411-9477 is a Restrictor,fluid Flow, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-411-9477: Length: 0.313 INCHES NOMINAL IN; Thread Provision: THREADED FIRST PROVISION; Design Type: TUBULAR; Thread Series: UNIFIED NATIONAL COARSE (UNC) FIRST PROVISION. 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.