The Restrictor Unit,fluid Flow, cataloged under National Stock Number 4730-01-159-0907, 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 Polytech Defense Spares Llc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-159-0907 |
| Primary Part Number | 2621-561-02 ASSY 202-9 |
| Item Name | Restrictor Unit,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Polytech Defense Spares Llc |
| Status | ACTIVE |
| Design Type | STRAIGHT |
| 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 |
|---|---|
| 2621-561-02 ASSY 202-9 | Polytech Defense Spares Llc (USA) |
| Reference | Meaning |
|---|---|
| 2621-561-02 | D/9 Drawing number reference only U.S. Government activity |
| 19-97-192 | 3/2 Design control — primary reference U.S. Government activity |
| 2621-561-02 ASSY 202-9 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-159-0907 is a Restrictor Unit,fluid Flow, manufactured by Polytech Defense Spares Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-159-0907 has 1 manufacturer part number on file: 2621-561-02 ASSY 202-9 (Polytech Defense Spares Llc).
Key specifications for 2621-561-02 ASSY 202-9: Design Type: STRAIGHT. 1 specification is 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.