The Valve,safety Relief, cataloged under National Stock Number 4820-01-434-6661, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-434-6661 |
| Primary Part Number | 61428000E |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| Status | ACTIVE |
| First Connection Face to Centerline Distance | 8.500 INCHES IN |
| Style Designator | ANGLE FLANGED ENDS |
| Bolt Circle Nominal Diameter | 9.500 INCHES FIRST END IN |
| Raised Face Nominal Height | 0.062 INCHES ALL ENDS IN |
| Maximum Operating Temp | 450.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Media for Which Designed | STEAM SINGLE RESPONSE |
| Operating Pressure | 185.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Raised Face Nominal Diameter | 6.188 INCHES SECOND END IN |
| Material | STEEL CORROSION RESISTING STEM |
| Connection Type | FLANGE ALL ENDS |
| Adjustable Pressure Range | +74.0 TO 79.0 POUNDS PER SQUARE INCH LBS |
| Bolt Hole Nominal Diameter | 0.750 INCHES SECOND END IN |
| Material | STEEL CORROSION RESISTING SEAT |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Bolt Hole Quantity | 8 ALL ENDS |
| Nominal Outside Diameter | 9.000 INCHES SECOND END IN |
| Nominal Thickness | 0.938 INCHES SECOND END IN |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Valve Size | 6.000 INCHES IN |
| Valve Operation Method | AUTOMATIC |
| Bolt Circle Nominal Diameter | 7.500 INCHES SECOND END IN |
| Nominal Outside Diameter | 11.000 INCHES FIRST END IN |
| Raised Face Nominal Diameter | 8.500 INCHES FIRST END IN |
| Flange Face Design | RAISED STRAIGHT ALL ENDS |
| Bolt Hole Nominal Diameter | 0.875 INCHES FIRST END IN |
| Material | STEEL BODY |
| Second Connection Face to Centerline Distance | 7.500 INCHES IN |
| Nominal Thickness | 1.000 INCHES FIRST END IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| DS-G-63177-4 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| DS-G-63177-4 ASSY 61428000 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 4N6JOS-15-C 74T79PSI | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 61428000E PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 61428000 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
NSN 4820-01-434-6661 is a Valve,safety Relief, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-434-6661 has 5 cross-referenced part numbers: DS-G-63177-4 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), DS-G-63177-4 ASSY 61428000 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 4N6JOS-15-C 74T79PSI (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 61428000E (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 61428000 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
There are 12 known substitutes for 4820-01-434-6661: 4820-01-434-5346, 4820-01-434-5349, 4820-01-434-5350 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 61428000E: First Connection Face to Centerline Distance: 8.500 INCHES IN; Style Designator: ANGLE FLANGED ENDS; Bolt Circle Nominal Diameter: 9.500 INCHES FIRST END IN; Raised Face Nominal Height: 0.062 INCHES ALL ENDS IN. 30 total characteristics are documented in the Federal Logistics Information System.