The Restrictor Unit,fluid Flow, cataloged under National Stock Number 4730-01-022-7998, 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 Tactair Fluid Controls Inc Western Hydraulics Div. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-022-7998 |
| Primary Part Number | 4-3822-02PC2 |
| Item Name | Restrictor Unit,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Tactair Fluid Controls Inc Western Hydraulics Div |
| Status | ACTIVE |
| Strainer Type and Quantity | 1 FILTER |
| Design Type | STRAIGHT |
| End Connection Type | THREADED MALE LOCATION NOT OTHERWISE SPECIFIED |
| Diameter | 0.187 INCHES NOMINAL IN |
| Valve Size | 0.188 INCHES IN |
| Thread Size Designator | 4-40 FIRST CONNECTION |
| Thread Size Designator | 8-36 SECOND CONNECTION |
| Orifice Diameter | 0.138 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN |
| End Connection Similarity | NOT IDENTICAL |
| 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 |
|---|---|
| 4-3822-02PC2 PRIMARY | Tactair Fluid Controls Inc Western Hydraulics Div (USA) |
| Reference | Meaning |
|---|---|
| 13VC0 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-022-7998 is a Restrictor Unit,fluid Flow, manufactured by Tactair Fluid Controls Inc Western Hydraulics Div, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-022-7998 has 1 manufacturer part number on file: 4-3822-02PC2 (Tactair Fluid Controls Inc Western Hydraulics Div).
Key specifications for 4-3822-02PC2: Strainer Type and Quantity: 1 FILTER; Design Type: STRAIGHT; End Connection Type: THREADED MALE LOCATION NOT OTHERWISE SPECIFIED; Diameter: 0.187 INCHES NOMINAL IN. 9 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.