The Valve,safety Relief, cataloged under National Stock Number 4820-01-435-1269, 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 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-435-1269 |
| Primary Part Number | 3K4-JOS-15-D 112T137PSI |
| 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 |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Flange Face Design | RAISED STRAIGHT ALL ENDS |
| Minimum Operating Temp | -20.0 FAHRENHEIT DEGF |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | ANGLE FLANGED ENDS |
| Valve Size | 3.000 INCHES IN |
| Adjustable Pressure Range | +112.0 TO 137.0 POUNDS PER SQUARE INCH LBS |
| Maximum Operating Temp | 450.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | STEEL UNS J03002 BODY |
| Opening Pressure Setting | 125.0 POUNDS PER SQUARE INCH LBS |
| 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 |
|---|---|
| 3K4-JOS-15-D 112T137PSI PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 3K4-JOS-15-D/61533000 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 61533000 112TO137PSI | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| Reference | Meaning |
|---|---|
| 61533000 SET AT | C/1 Advisory reference — outside the item-of-supply concept Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
NSN 4820-01-435-1269 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 4820-01-435-1269 has 3 manufacturer part numbers on file: 3K4-JOS-15-D 112T137PSI (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 3K4-JOS-15-D/61533000 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 61533000 112TO137PSI (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
Key specifications for 3K4-JOS-15-D 112T137PSI: Flow Control Device: DISK; Flange Shape: ROUND WITH HOLES ALL ENDS; Flange Face Design: RAISED STRAIGHT ALL ENDS; Minimum Operating Temp: -20.0 FAHRENHEIT DEGF. 12 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.