The Valve,safety Relief, cataloged under National Stock Number 4820-01-145-6461, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-145-6461 |
| Primary Part Number | 20187FM41T |
| 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 |
| Disk Loading Method | SPRING |
| Connection Style | SOCKET WITH BRAZING RING (TUBE) ALL ENDS |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Maximum Operating Temp | 150.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | NICKEL ALLOY SEAT |
| Adjustable Pressure Range | +30.0 TO 34.0 POUNDS PER SQUARE INCH LBS |
| Material | COPPER ALLOY BODY |
| Operating Pressure | 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Bonnet Type | OUTSIDE SCREW-YOKE |
| Flow Control Device | DISK |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES ALL ENDS IN |
| Material | STEEL COMP 316 STEM |
| Valve Operation Method | AUTOMATIC |
| Connection Type | UNTHREADED INTERNAL TUBE ALL ENDS |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Bonnet Attachment Method | BOLTED |
| Style Designator | ANGLE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20187 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20187FM41T PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20187FM41T | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-01-145-6461 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 4820-01-145-6461 has 3 cross-referenced part numbers: 20187 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20187FM41T (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20187FM41T (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There are 9 known substitutes for 4820-01-145-6461: 4130-00-103-8991, 5985-00-240-7419, 5120-00-916-3307 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20187FM41T: Disk Loading Method: SPRING; Connection Style: SOCKET WITH BRAZING RING (TUBE) ALL ENDS; Material: NICKEL ALLOY FLOW CONTROL DEVICE; End Item Identification: SHIP,OHIO CLASS SSN(TRIDENT). 18 total characteristics are documented in the Federal Logistics Information System.