The Valve,safety Relief, cataloged under National Stock Number 4820-01-469-8675, 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. Government technical data includes 9 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-469-8675 |
| Primary Part Number | CDS-549 ITEM 10 |
| 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 |
| Flow Control Device | DISK |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | ANGLE FLANGED ENDS |
| Valve Size | 1.500 INCHES IN |
| Second Connection Face to Centerline Distance | 3.750 INCHES IN |
| First Connection Face to Centerline Distance | 4.500 INCHES IN |
| Material | BRONZE BODY |
| Valve Discharge Flow Rate | 213.0 GALLONS PER MINUTE |
| 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 |
|---|---|
| CDS-549 ITEM 10 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| NMP-722 OPTION G 141T190PSI PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| LL2120-C 1.5IN 141T190PSI PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| Reference | Meaning |
|---|---|
| LL-2120-C 1.5IN | C/1 Advisory reference — outside the item-of-supply concept Kunkle Industries Inc Lonergan Valve Div |
NSN 4820-01-469-8675 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 4820-01-469-8675 has 3 manufacturer part numbers on file: CDS-549 ITEM 10 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), NMP-722 OPTION G 141T190PSI (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), LL2120-C 1.5IN 141T190PSI (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
Key specifications for CDS-549 ITEM 10: Flow Control Device: DISK; Connection Type: FLANGE ALL ENDS; Style Designator: ANGLE FLANGED ENDS; Valve Size: 1.500 INCHES 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.