The Restrictor Unit,fluid Flow, cataloged under National Stock Number 4730-01-321-6532, 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 Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Restrictor Unit,fluid Flow |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Manufacturers | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (CAGE 09990) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-321-6532 |
| Primary Part Number | 2703T-12-23 |
| Item Name | Restrictor Unit,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
| Status | ACTIVE |
| 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 |
|---|---|
| 2703T-12-23 | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA) |
| Reference | Meaning |
|---|---|
| 26512-3-23 | 5/9 Secondary reference Vonberg Valve, Inc. |
| 502980500 | D/9 Drawing number reference only U.S. Government activity |
| 2703T-12-23 | 5/9 Secondary reference U.S. Government activity |
| 502980500 PART 03 | 3/2 Design control — primary reference U.S. Government activity |
| 5029805-03 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4730-01-321-6532 is a Restrictor Unit,fluid Flow, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-321-6532 has 1 manufacturer part number on file: 2703T-12-23 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division).
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.