The Valve,linear,directional Control, cataloged under National Stock Number 4820-01-533-1346, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Cessna Aircraft Co Fluid Power Div. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-533-1346 |
| Primary Part Number | 30923-CBF |
| Item Name | Valve,linear,directional Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Cessna Aircraft Co Fluid Power Div |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 RELIEF VALVE |
| Poppet Quantity | 1 |
| Maximum Operating Temp and Media for Which Designed | 225.0 FAHRENHEIT OIL, HYDRAULIC DEGF |
| Operating Pressure and Type | 4500.0 POUNDS PER SQUARE INCH (PSI) HYDRAULIC OIL MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Connection Type | THREADED INTERNAL PIPE |
| End Connection Quantity | 8 |
| Features Provided | SPRING CENTERED |
| Spool Quantity | 3 |
| Body Material | IRON CAST |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| 30923-CBF PRIMARY | Cessna Aircraft Co Fluid Power Div (USA) |
| Reference | Meaning |
|---|---|
| 520-079 | 5/2 Secondary reference U.S. Government activity |
| 520-077 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-533-1346 is a Valve,linear,directional Control, manufactured by Cessna Aircraft Co Fluid Power Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-533-1346 has 1 manufacturer part number on file: 30923-CBF (Cessna Aircraft Co Fluid Power Div).
1 possible match (shared part number, not a government interchangeability claim): 7690-01-616-5262. Verify interchangeability with system specifications before substitution.
Key specifications for 30923-CBF: Furnished Items and Quantity: 1 RELIEF VALVE; Poppet Quantity: 1; Maximum Operating Temp and Media for Which Designed: 225.0 FAHRENHEIT OIL, HYDRAULIC DEGF; Operating Pressure and Type: 4500.0 POUNDS PER SQUARE INCH (PSI) HYDRAULIC OIL MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS. 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.