The Valve,safety Relief, cataloged under National Stock Number 4820-01-053-5083, 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 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-053-5083 |
| Primary Part Number | 20304MS51SS |
| 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 |
| Flow Control Device | DISK OR STEM |
| Nominal Thread Size | 0.500 INCHES ALL ENDS IN |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Material | STEEL BODY |
| Valve Discharge Flow Rate | 314.0 CUBIC FEET PER MINUTE |
| Material Document and Classification | QQ-S-764,COMP 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE STEM |
| Valve Operation Method | AUTOMATIC |
| Material | STEEL COMP 303 STEM |
| Maximum Operating Temp | 165.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | STEEL COMP 303 SEAT |
| Bonnet Attachment Method | INTEGRAL |
| Material | STEEL COMP 303 FLOW CONTROL DEVICE |
| Disk Loading Method | SPRING |
| Bonnet Type | INSIDE SPRING |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Material Document and Classification | QQ-S-764,COMP 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| Style Designator | ANGLE |
| Test Data Document | 34494-20304 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Material Document and Classification | QQ-S-764,COMP 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Thread Series Designator | NPT ALL ENDS |
| Material Document and Classification | ASTM A351,GRADE CF8 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20304MS51SS PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 16045 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 16045 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20304MS51SS | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-01-053-5083 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 4820-01-053-5083 has 4 cross-referenced part numbers: 20304MS51SS (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 16045 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 16045 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20304MS51SS (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There are 5 known substitutes for 4820-01-053-5083: 6680-00-211-6351, 5365-00-255-6673, 5307-01-439-6559 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20304MS51SS: Flow Control Device: DISK OR STEM; Nominal Thread Size: 0.500 INCHES ALL ENDS IN; Connection Type: THREADED EXTERNAL PIPE ALL ENDS; Material: STEEL BODY. 24 total characteristics are documented in the Federal Logistics Information System.