The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-390-8140, 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 10 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-390-8140 |
| Primary Part Number | 6592698 |
| Item Name | Restrictor,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Length | 0.270 INCHES NOMINAL IN |
| Thread Provision | THREADED LOCATION NOT OTHERWISE SPECIFIED |
| Design Type | TUBULAR |
| Thread Series | NPTF LOCATION NOT OTHERWISE SPECIFIED |
| Thread Length | 0.270 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Outside Diameter | 0.125 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED |
| Thread Size Designator | 1/8-27 LOCATION NOT OTHERWISE SPECIFIED |
| Material | STEEL CORROSION RESISTING |
| Orifice Diameter | 0.086 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 |
| Part Number | Manufacturer |
|---|---|
| 6519106 PIECE 5 | Naval Sea Systems Command (USA) |
| 6592698 PC 1 | Naval Sea Systems Command (USA) |
| 6592698 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6519106 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4730-01-390-8140 is a Restrictor,fluid Flow, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-390-8140 has 3 manufacturer part numbers on file: 6519106 PIECE 5 (Naval Sea Systems Command), 6592698 PC 1 (Naval Sea Systems Command), 6592698 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-464-3319. Verify interchangeability with system specifications before substitution.
Key specifications for 6592698: Length: 0.270 INCHES NOMINAL IN; Thread Provision: THREADED LOCATION NOT OTHERWISE SPECIFIED; Design Type: TUBULAR; Thread Series: NPTF LOCATION NOT OTHERWISE SPECIFIED. 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.