The Valve,safety Relief, cataloged under National Stock Number 4820-01-139-1897, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Dante Valve Company. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-139-1897 |
| Primary Part Number | BEMAA08SDD |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Dante Valve Company |
| Status | ACTIVE |
| Bonnet Attachment Method | BOLTED |
| Material | COPPER ALLOY BODY |
| Material | PLASTIC POLYCHLOROTRIFLUOROETHYLENE SEAT |
| Valve Operation Method | AUTOMATIC |
| Connection Type | FLANGE SECOND END |
| Bonnet Type | INSIDE SPRING |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Connection Style | STREAMLINED WITH ONE BRAZING RING (TUBE) FIRST END |
| Adjustable Pressure Range | +211.0 TO 240.0 POUNDS PER SQUARE INCH LBS |
| Nominal Outside Diameter | 3.812 INCHES SECOND END IN |
| Material | NICKEL ALLOY STEM |
| Maximum Operating Temp | 150.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | PLASTIC POLYCHLOROTRIFLUOROETHYLENE FLOW CONTROL DEVICE |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES FIRST END IN |
| Nominal Thickness | 0.688 INCHES SECOND END IN |
| Operating Pressure | 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Flange Face Design | PLAIN SECOND END |
| Flow Control Device | DISK |
| Style Designator | ANGLE |
| Flange Shape | ROUND SECOND END |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| BEMAA08SDD PRIMARY | Dante Valve Company (USA) |
| 20346 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20346T51M PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20346 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20346 PART20346T51M | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20346 PART20346T51M | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| D54FU 211T240 3/4 IN. | Danco Valve Company (USA) |
| 20346T51M | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| BEMAA08SDD | Danco Valve Company (USA) |
NSN 4820-01-139-1897 is a Valve,safety Relief, manufactured by Dante Valve Company, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-139-1897 has 9 cross-referenced part numbers: BEMAA08SDD (Dante Valve Company), 20346 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20346T51M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20346 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20346 PART20346T51M (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team) and 4 more.
There are 7 known substitutes for 4820-01-139-1897: 3110-00-100-6182, 5950-00-228-1758, 3120-00-447-6886 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for BEMAA08SDD: Bonnet Attachment Method: BOLTED; Material: COPPER ALLOY BODY; Material: PLASTIC POLYCHLOROTRIFLUOROETHYLENE SEAT; Valve Operation Method: AUTOMATIC. 20 total characteristics are documented in the Federal Logistics Information System.