The Selector,directional, cataloged under National Stock Number 4820-01-325-0589, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Sun Hydraulics Corporation. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-325-0589 |
| Primary Part Number | RDDA-LAN |
| Item Name | Selector,directional |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Sun Hydraulics Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | LEAKPROOF SCREW ADJUSTMENT CONTROL; 35 T0 210 BAR 70 BAR STANDARD SETTING; BUNA N SEAL |
| 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 |
|---|---|
| RDDA-LAN | Hyd&au Fluid (FRA) |
| RDDA-LAN | Hanwha Defense Australia Pty Ltd (AUS) |
| RDDA-LAN PRIMARY | Sun Hydraulics Corporation (USA) |
| Reference | Meaning |
|---|---|
| 13049433 | 5/1 Secondary reference Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| RDDA-LAN | 5/9 Secondary reference Applications Techniques Hydrauliques |
NSN 4820-01-325-0589 is a Selector,directional, manufactured by Sun Hydraulics Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-325-0589 has 3 manufacturer part numbers on file: RDDA-LAN (Hyd&au Fluid), RDDA-LAN (Hanwha Defense Australia Pty Ltd), RDDA-LAN (Sun Hydraulics Corporation).
Key specifications for RDDA-LAN: General Characteristics Item Description: LEAKPROOF SCREW ADJUSTMENT CONTROL; 35 T0 210 BAR 70 BAR STANDARD SETTING; BUNA N SEAL. 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.