The Valve,safety Relief, cataloged under National Stock Number 4820-01-122-9775, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-122-9775 |
| Primary Part Number | 310116H1 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| Status | ACTIVE |
| Thread Series Designator | NPT FIRST END |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Opening Pressure Setting | 150.0 POUNDS PER SQUARE INCH LBS |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| Valve Operation Method | AUTOMATIC |
| Maximum Operating Temp | 250.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Maximum Operating Temp | -40.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Connection Style | PLAIN (PIPE) FIRST END |
| Media for Which Designed | ALCOHOL, ETHYL SECOND RESPONSE |
| Media for Which Designed | AMMONIA, GASEOUS THIRD RESPONSE |
| Thread Direction | RIGHT-HAND FIRST END |
| Media for Which Designed | HYDROGEN FIFTH RESPONSE |
| Flow Control Device | POPPET |
| Media for Which Designed | AIR FIRST RESPONSE |
| Media for Which Designed | REFRIGERANT 12 FOURTH RESPONSE |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Style Designator | STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY. |
| Material | COPPER ALLOY OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 310116H1 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| 6447 | Electro Impulse Laboratory Inc Dba Electro Impulse Inc (USA) |
| 310116H1 PRIMARY | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| 6447B | Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA) |
| 310116H1 | Siemens Energy, Inc. Dba Dresser-Rand (USA) |
NSN 4820-01-122-9775 is a Valve,safety Relief, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-122-9775 has 5 cross-referenced part numbers: 310116H1 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), 6447 (Electro Impulse Laboratory Inc Dba Electro Impulse Inc), 310116H1 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), 6447B (Dresser-Rand Co Worthington Compressor Opn a Joint Venture), 310116H1 (Siemens Energy, Inc. Dba Dresser-Rand).
There are 7 known substitutes for 4820-01-122-9775: 6135-00-043-0021, 5945-00-355-9497, 5930-01-040-7843 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 310116H1: Thread Series Designator: NPT FIRST END; Operating Pressure: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Special Features: POP-OFF TYPE; Opening Pressure Setting: 150.0 POUNDS PER SQUARE INCH LBS. 19 total characteristics are documented in the Federal Logistics Information System.