The Valve,safety Relief, cataloged under National Stock Number 4820-01-074-5047, 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Dante Valve Company (CAGE 5P967); Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (CAGE 15187) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-074-5047 |
| Primary Part Number | 20282C51M/20282REV0/883117543 |
| 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 |
|---|---|
| D55UU-10T40 | Dante Valve Company (USA) |
| 20282C51M/20282REV0/883117543 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| Reference | Meaning |
|---|---|
| D55UU-10T40 | 5/9 Secondary reference Danco Valve Company |
| MIL-V-22549 | 4/1 Identification reference U.S. Government activity |
| 59610-1 | 3/2 Design control — primary reference U.S. Government activity |
| 20282C51M/20282REV0/883117543 | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| 59610-TAB | D/9 Drawing number reference only U.S. Government activity |
NSN 4820-01-074-5047 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 4820-01-074-5047 has 2 manufacturer part numbers on file: D55UU-10T40 (Dante Valve Company), 20282C51M/20282REV0/883117543 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
5 possible matches (shared part number, not a government interchangeability claim): 4820-01-100-2607, 4820-01-263-5522, 4820-01-266-8144. Verify interchangeability with system specifications before substitution.
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.