The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-178-0767, 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 Jetco Inc. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-178-0767 |
| Primary Part Number | 31-18 |
| Item Name | Restrictor,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Jetco Inc |
| Status | ACTIVE |
| Length | 2.000 INCHES NOMINAL IN |
| Thread Provision | THREADED SINGLE PROVISION |
| Design Type | TUBULAR, HEX SHAPE |
| Thread Series | NPTF FIRST PROVISION |
| Thread Length | 0.375 INCHES NOMINAL FIRST PROVISION IN |
| Outside Diameter | 0.438 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND FIRST PROVISION |
| Thread Size Designator | 1/8-27 FIRST PROVISION |
| Thread Class | 2A FIRST PROVISION A |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 31-18 PRIMARY | Jetco Inc (USA) |
| Reference | Meaning |
|---|---|
| 9290981 | 7/2 Vendor item drawing reference Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
NSN 4730-01-178-0767 is a Restrictor,fluid Flow, manufactured by Jetco Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-178-0767 has 1 manufacturer part number on file: 31-18 (Jetco Inc).
Key specifications for 31-18: Length: 2.000 INCHES NOMINAL IN; Thread Provision: THREADED SINGLE PROVISION; Design Type: TUBULAR, HEX SHAPE; Thread Series: NPTF FIRST PROVISION. 10 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.