The Valve,safety Relief, cataloged under National Stock Number 4820-01-281-3049, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-281-3049 |
| Primary Part Number | R10AL2L24 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hunt Valve Company, Inc. |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | ANGLE FLANGED ENDS |
| Operating Pressure | 100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 3.000 INCHES IN |
| Valve Operation Method | AUTOMATIC OR 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 |
|---|---|
| D49188-MI 3IN 12T15 | Hunt Valve Company, Inc. (USA) |
| R10AL2L24 PRIMARY | Hunt Valve Company, Inc. (USA) |
| 20218 3IN.12T19PSI | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 2021800241M PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| Reference | Meaning |
|---|---|
| R10AL2L24 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| 2021800241M | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| D49188-MI 3IN 12T15 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| 20218 3IN.12T19PSI | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
NSN 4820-01-281-3049 is a Valve,safety Relief, manufactured by Hunt Valve Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-281-3049 has 4 manufacturer part numbers on file: D49188-MI 3IN 12T15 (Hunt Valve Company, Inc.), R10AL2L24 (Hunt Valve Company, Inc.), 20218 3IN.12T19PSI (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 2021800241M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
Key specifications for R10AL2L24: Flow Control Device: DISK; Flange Shape: ROUND WITH HOLES ALL ENDS; Connection Type: FLANGE ALL ENDS; Style Designator: ANGLE FLANGED ENDS. 7 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.