The Valve,safety Relief, cataloged under National Stock Number 4820-01-050-2819, 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 4 commercial cross-references from 3 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 | 4820-01-050-2819 |
| Primary Part Number | 20315LS51SS |
| 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 |
| Connection Type | THREADED EXTERNAL BOSS ALL ENDS |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Specification/standard Data | 81349-MIL-V-22549 GOVERNMENT SPECIFICATION |
| Bonnet Attachment Method | BOLTED |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS |
| Nondefinitive Spec/std Data | 1500 RATING AND 1.000 IN. SIZE IN |
| Material Document and Classification | QQ-S-764,TYPE 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE STEM |
| Bonnet Type | INSIDE SPRING |
| Material | STEEL BODY |
| Material | STEEL COMP 303 SEAT |
| Maximum Operating Temp | 150.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material Document and Classification | ASTM A351,GRADE CF8 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material | STEEL COMP 303 AND PLASTIC POLYCHLOROTRIFLUOROETHYLENE FLOW CONTROL DEVICE |
| Renewable Seat Ring Type | THREADED |
| Thread Quantity Per Inch | 12 ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Disk Loading Method | SPRING |
| Style Designator | ANGLE |
| Material | STEEL COMP 303 STEM |
| Nominal Thread Size | 2.250 INCHES ALL ENDS IN |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Material Document and Classification | QQ-S-764,TYPE 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| Flow Control Device | DISK |
| Thread Series Designator | UN ALL ENDS |
| Operating Pressure | 750.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Class | 3A ALL ENDS A |
| Adjustable Pressure Range | +76.0 TO 90.0 POUNDS PER SQUARE INCH LBS |
| Material Document and Classification | QQ-S-764,TYPE 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20315LS51SS | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20315 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| MIL-V-22549 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 20315LS51SS PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
NSN 4820-01-050-2819 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 4820-01-050-2819 has 4 cross-referenced part numbers: 20315LS51SS (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20315 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), MIL-V-22549 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 20315LS51SS (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
There are 9 known substitutes for 4820-01-050-2819: 3110-00-156-7593, 6130-00-237-0176, 4810-00-570-9507 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20315LS51SS: Connection Type: THREADED EXTERNAL BOSS ALL ENDS; Media for Which Designed: AIR SINGLE RESPONSE; Specification/standard Data: 81349-MIL-V-22549 GOVERNMENT SPECIFICATION; End Item Identification: SHIP,OHIO CLASS SSN(TRIDENT). 29 total characteristics are documented in the Federal Logistics Information System.