The Valve,safety Relief, cataloged under National Stock Number 4820-01-260-0505, 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 28 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-260-0505 |
| Primary Part Number | 61366036 |
| 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 |
| Bolt Circle Nominal Diameter | 6.625 INCHES FIRST END IN |
| Bolt Circle Nominal Diameter | 4.750 INCHES SECOND END IN |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | ANGLE FLANGED ENDS |
| Bolt Hole Nominal Diameter | 0.625 INCHES SECOND END IN |
| Bolt Hole Nominal Diameter | 0.875 INCHES FIRST END IN |
| Valve Size | 3.000 INCHES IN |
| Maximum Operating Temp | -20.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Maximum Operating Temp | 100.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Second Connection Face to Centerline Distance | 5.375 INCHES IN |
| Nominal Outside Diameter | 8.250 INCHES FIRST END IN |
| Nominal Outside Diameter | 6.000 INCHES SECOND END IN |
| Bolt Hole Quantity | 4 SECOND END |
| Bolt Hole Quantity | 8 FIRST END |
| First Connection Face to Centerline Distance | 4.875 INCHES IN |
| Material | STEEL BODY |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Raised Face Nominal Diameter | 5.000 INCHES FIRST END IN |
| Raised Face Nominal Diameter | 3.625 INCHES SECOND END IN |
| Opening Pressure Setting | 185.0 POUNDS PER SQUARE INCH LBS |
| Valve Operation Method | AUTOMATIC |
| Raised Face Nominal Height | 1.063 INCHES SECOND END IN |
| Raised Face Nominal Height | 0.062 INCHES FIRST END IN |
| Nominal Thickness | 1.125 INCHES FIRST END IN |
| Nominal Thickness | 0.500 INCHES SECOND END IN |
| 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 |
|---|---|
| 61366036 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 2J3J0S25 TYPE A CAP SCREW | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
NSN 4820-01-260-0505 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 4820-01-260-0505 has 2 manufacturer part numbers on file: 61366036 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 2J3J0S25 TYPE A CAP SCREW (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
Key specifications for 61366036: Flow Control Device: DISK; Flange Shape: ROUND WITH HOLES ALL ENDS; Flange Face Design: RAISED STRAIGHT ALL ENDS; Bolt Circle Nominal Diameter: 6.625 INCHES FIRST END IN. 28 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.