The Valve,safety Relief, cataloged under National Stock Number 4820-01-259-2274, 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 18 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 | 4820-01-259-2274 |
| Primary Part Number | 20235L51, CD SHT 16282 |
| 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 |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Maximum Operating Temp | 165.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Flow Control Device | DISK |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Material Document and Classification | ASTM B-61 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM |
| Operating Pressure | 460.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Nominal Pipe Size Accommodated | 0.250 INCHES ALL ENDS IN |
| Style Designator | ANGLE |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Material | NICKEL ALLOY SEAT |
| Valve Operation Method | AUTOMATIC |
| Adjustable Pressure Range | +76.0 TO 90.0 POUNDS PER SQUARE INCH LBS |
| Connection Style | SOCKET WITH BRAZING RING ALL ENDS |
| Material | COPPER ALLOY 922 BODY |
| Material | NICKEL ALLOY STEM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20235L51, CD SHT 16282 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20235 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 20235L51M CD SHT 16282 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-01-259-2274 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 4820-01-259-2274 has 3 cross-referenced part numbers: 20235L51, CD SHT 16282 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20235 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 20235L51M CD SHT 16282 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There are 12 known substitutes for 4820-01-259-2274: 5330-00-182-3482, 5950-00-336-2979, 5305-00-468-0008 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20235L51, CD SHT 16282: Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS; Special Features: SPRING NUMBER: 75L; Material: NICKEL ALLOY FLOW CONTROL DEVICE; Maximum Operating Temp: 165.0 FAHRENHEIT SINGLE RESPONSE DEGF. 19 total characteristics are documented in the Federal Logistics Information System.