The Valve,safety Relief, cataloged under National Stock Number 4820-01-068-2981, 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 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 4 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 | 4820-01-068-2981 |
| Primary Part Number | 20CS169-1-4-76T105 |
| 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 |
| Valve Operation Method | AUTOMATIC |
| Nominal Pipe Size Accommodated | 0.250 INCHES ALL ENDS IN |
| Bonnet Type | INSIDE SPRING |
| Bonnet Attachment Method | THREADED |
| Maximum Operating Temp | 150.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Connection Style | SOCKET WITH BRAZING RING ALL ENDS |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Adjustable Pressure Range | +76.0 TO 105.0 POUNDS PER SQUARE INCH LBS |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Flow Control Device | DISK |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Disk Loading Method | SPRING |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Style Designator | ANGLE |
| Operating Pressure | 440.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material Document and Classification | QQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Material Document and Classification | AISI 303 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Material | COPPER ALLOY BODY |
| Material | STEEL COMP 303 STEM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 9663-76T0105PSI | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| D40HUU-06 1/4 IN | Danco Valve Company (USA) |
| 20CS169-1-4-76T105 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 20CS169-1-4-76T105 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| D40HUU-06 1/4 IN PRIMARY | Dante Valve Company (USA) |
| 9663-76T0105PSI | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 9663-20CS169-76 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 9663 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-01-068-2981 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 4820-01-068-2981 has 8 cross-referenced part numbers: 9663-76T0105PSI (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), D40HUU-06 1/4 IN (Danco Valve Company), 20CS169-1-4-76T105 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 20CS169-1-4-76T105 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), D40HUU-06 1/4 IN (Dante Valve Company) and 3 more.
There are 12 known substitutes for 4820-01-068-2981: 5935-00-129-3112, 5120-00-237-8173, 5935-00-439-3755 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20CS169-1-4-76T105: Valve Operation Method: AUTOMATIC; Nominal Pipe Size Accommodated: 0.250 INCHES ALL ENDS IN; Bonnet Type: INSIDE SPRING; Bonnet Attachment Method: THREADED. 21 total characteristics are documented in the Federal Logistics Information System.