The Valve,safety Relief, cataloged under National Stock Number 4820-01-159-5776, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (CAGE 15187) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-159-5776 |
| Primary Part Number | 20146Y91SS CDA15689 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| 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 |
|---|---|
| CDA15689 20146Y91SS | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20146Y91SS CDA15689 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| Reference | Meaning |
|---|---|
| CASZN15SGG-A003 | 5/9 Secondary reference Danco Valve Company |
| CDA15689 | D/9 Drawing number reference only Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| 20146Y91SS CDA15689 | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| CDA15689 20146Y91SS | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| CPMTN15CGG | C/1 Advisory reference — outside the item-of-supply concept Dante Valve Company |
| CPMTN15CGG | 5/9 Secondary reference Danco Valve Company |
NSN 4820-01-159-5776 is a Valve,safety Relief, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-159-5776 has 2 manufacturer part numbers on file: CDA15689 20146Y91SS (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20146Y91SS CDA15689 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
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.