The Valve,safety Relief, cataloged under National Stock Number 4820-01-199-3015, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-199-3015 |
| Primary Part Number | LL3210B AND NMP423 MOD60 LBSE |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | ACTIVE |
| Connection Type | FLANGE ALL ENDS |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Media for Which Designed | STEAM FIRST RESPONSEUNABLE TO DECODE |
| Material | STEEL BODY |
| Material | STEEL CORROSION RESISTING STEM |
| 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 |
|---|---|
| LL3210B AND NMP423 MOD60 LBSE PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| Reference | Meaning |
|---|---|
| LL3210B AND NMP | C/1 Advisory reference — outside the item-of-supply concept Kunkle Industries Inc Lonergan Valve Div |
| LL3210B AND NMP423 MOD60 LBSE | 5/9 Secondary reference Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| LL3210B AND NMP423 MOD60 LBSE | 5/9 Secondary reference Kunkle Industries Inc Lonergan Valve Div |
NSN 4820-01-199-3015 is a Valve,safety Relief, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-199-3015 has 1 manufacturer part number on file: LL3210B AND NMP423 MOD60 LBSE (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
Key specifications for LL3210B AND NMP423 MOD60 LBSE: Connection Type: FLANGE ALL ENDS; Media for Which Designed: WATER-OIL-GAS SECOND RESPONSE; Media for Which Designed: STEAM FIRST RESPONSEUNABLE TO DECODE; Material: STEEL BODY. 5 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.