The Valve,safety Relief, cataloged under National Stock Number 4820-01-164-9622, 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 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-164-9622 |
| Primary Part Number | CBCARBN |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Sun Hydraulics Corporation |
| Status | ACTIVE |
| Connection Type | THREADED CARTRIDGE ALL ENDS |
| Style Designator | SCREW-IN CARTRIDGE |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Maximum Operating Temp | 160.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Surface Treatment | ZINC LOCATION NOT OTHERWISE SPECIFIED |
| Material | STEEL BODY |
| Thread Series Designator | ISO M ALL ENDS |
| Opening Pressure Setting | 800.0 POUNDS PER SQUARE INCH LBS |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| CBCARBN PRIMARY | Sun Hydraulics Corporation (USA) |
| 7565603-001 PRIMARY | General Dynamics Land Systems Inc. (USA) |
| Reference | Meaning |
|---|---|
| 7565603 | 7/2 Vendor item drawing reference General Dynamics Land Systems Inc. |
NSN 4820-01-164-9622 is a Valve,safety Relief, manufactured by Sun Hydraulics Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-164-9622 has 2 manufacturer part numbers on file: CBCARBN (Sun Hydraulics Corporation), 7565603-001 (General Dynamics Land Systems Inc.).
Key specifications for CBCARBN: Connection Type: THREADED CARTRIDGE ALL ENDS; Style Designator: SCREW-IN CARTRIDGE; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Maximum Operating Temp: 160.0 FAHRENHEIT SINGLE RESPONSE DEGF. 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.