The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-170-4783, 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 Ge Aviation Systems Ltd. Government technical data includes 6 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-170-4783 |
| Primary Part Number | P321086 |
| Item Name | Restrictor,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Ge Aviation Systems Ltd |
| Status | ACTIVE |
| Length | 0.560 INCHES NOMINAL IN |
| Thread Provision | THREADED LOCATION NOT OTHERWISE SPECIFIED |
| Design Type | TUBULAR |
| Outside Diameter | 0.187 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| P321086 | Ge Aviation Systems Ltd (GBR) |
| Reference | Meaning |
|---|---|
| JETA1875800L | 3/2 Design control — primary reference U.S. Government activity |
| P321086 | 7/2 Vendor item drawing reference Meggitt International Ltd |
| P321086 | 7/2 Vendor item drawing reference Safran Landing Systems Uk Ltd Div Safran Landing Systems Uk |
| P321086 | 7/9 Vendor item drawing reference Meggitt (uk) Ltd, T/a Meggitt Control Systems |
| P321086 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-170-4783 is a Restrictor,fluid Flow, manufactured by Ge Aviation Systems Ltd, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-170-4783 has 1 manufacturer part number on file: P321086 (Ge Aviation Systems Ltd).
Key specifications for P321086: Length: 0.560 INCHES NOMINAL IN; Thread Provision: THREADED LOCATION NOT OTHERWISE SPECIFIED; Design Type: TUBULAR; Outside Diameter: 0.187 INCHES NOMINAL IN. 6 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.