The Valve,safety Relief, cataloged under National Stock Number 4820-01-367-4772, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, 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 | 4820-01-367-4772 |
| Primary Part Number | 1990C-1-XDA1 .75IPS 135PSI |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse |
| Status | ACTIVE |
| Material | STEEL COMP 316 FLOW CONTROL DEVICE |
| Material Document and Classification | ASTM A479 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Material | STEEL COMP 410 STEM |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Material Document and Classification | ASTM A479 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Disk Loading Method | SPRING |
| Material Document and Classification | ASTM A276,COND T ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Flow Control Device | DISK |
| Nominal Pipe Size Accommodated | 0.750 INCHES SECOND END IN |
| Media for Which Designed | STEAM SECOND RESPONSE |
| Furnished Items and Quantity | 1 LEVER |
| Opening Pressure Setting | 135.0 POUNDS PER SQUARE INCH LBS |
| Operating Pressure | 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Style Designator | ANGLE |
| Media for Which Designed | AIR FIRST RESPONSE |
| Maximum Operating Temp | 400.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Minimum Operating Temp | -20.0 FAHRENHEIT DEGF |
| Connection Style | SOCKET ALL ENDS |
| Material | STEEL COMP 316 BODY |
| Valve Operation Method | AUTOMATIC |
| Nominal Pipe Size Accommodated | 1.000 INCHES FIRST END IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1990C-1-XDA1 .75IPS 135PSI | Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse (USA) |
| 0.75-19110C0-1-CC-DA-31-MTFTGS | Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse (USA) |
| 1990 | Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse (USA) |
NSN 4820-01-367-4772 is a Valve,safety Relief, manufactured by Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-367-4772 has 3 cross-referenced part numbers: 1990C-1-XDA1 .75IPS 135PSI (Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse), 0.75-19110C0-1-CC-DA-31-MTFTGS (Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse), 1990 (Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse).
There are 12 known substitutes for 4820-01-367-4772: 2990-00-019-6106, 4730-00-202-9326, 4820-00-287-3139 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1990C-1-XDA1 .75IPS 135PSI: Material: STEEL COMP 316 FLOW CONTROL DEVICE; Material Document and Classification: ASTM A479 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE; Material: STEEL COMP 410 STEM; Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS. 22 total characteristics are documented in the Federal Logistics Information System.