The Valve,safety Relief, cataloged under National Stock Number 4820-01-428-9878, 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 15 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-428-9878 |
| Primary Part Number | 20274J51M(OXCLEA |
| 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 | UNTHREADED INTERNAL PIPE ALL ENDS |
| Nominal Pipe Size Accommodated | 0.500 INCHES ALL ENDS IN |
| Bonnet Type | OUTSIDE SCREW-YOKE |
| Bonnet Attachment Method | BOLTED |
| Disk Loading Method | SPRING |
| Adjustable Pressure Range | +56.0 TO 65.0 POUNDS PER SQUARE INCH LBS |
| Maximum Operating Temp | 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Furnished Items and Quantity | 2 TAILPIECE |
| Material | BRONZE OVERALL |
| Style Designator | ANGLE |
| Material Document and Classification | ASTM B-61 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Media for Which Designed | OXYGEN, LIQUID SINGLE RESPONSE |
| Operating Pressure | 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Connection Style | SOCKET WITH BRAZING RING ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20274 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20274J51M(OXCLEAN) | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20274J51M(OXCLEA PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
NSN 4820-01-428-9878 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 4820-01-428-9878 has 3 cross-referenced part numbers: 20274 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20274J51M(OXCLEAN) (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20274J51M(OXCLEA (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
There are 12 known substitutes for 4820-01-428-9878: 5940-00-502-2949, 3110-00-554-3197, 6685-00-810-6047 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20274J51M(OXCLEA: Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS; Nominal Pipe Size Accommodated: 0.500 INCHES ALL ENDS IN; Bonnet Type: OUTSIDE SCREW-YOKE; Bonnet Attachment Method: BOLTED. 17 total characteristics are documented in the Federal Logistics Information System.