The Valve,safety Relief, cataloged under National Stock Number 4820-01-168-1877, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 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 | 4820-01-168-1877 |
| Primary Part Number | 189RCS168X9524W/VIT4101T5400 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | ACTIVE |
| Material | STEEL COMP 304 SEAT |
| Material | STEEL COMP 316 BODY |
| Maximum Operating Temp | 180.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Media for Which Designed | AIR FIRST RESPONSE |
| Adjustable Pressure Range | +4101.0 TO 5400.0 POUNDS PER SQUARE INCH LBS |
| Disk Loading Method | SPRING |
| Connection Style | SOCKET WITH BRAZING RING (TUBE) FIRST END |
| Material Document and Classification | AISI 316 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Operating Pressure | 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES SECOND END IN |
| Style Designator | ANGLE |
| Material Document and Classification | AISI 303 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Connection Type | UNTHREADED INTERNAL TUBE SECOND END |
| Connection Style | SOCKET (TUBE) SECOND END |
| Material Document and Classification | FED STD 66,AISI 304/SAE 30304 FED STD SINGLE MATERIAL RESPONSE SEAT |
| Valve Operation Method | AUTOMATIC |
| Flow Control Device | DISK |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES FIRST END IN |
| Material | STEEL COMP 303 FLOW CONTROL DEVICE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 189RCS168X9524W/VIT4101T5400 PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| D49-60UU-12 1/2IN | Danco Valve Company (USA) |
| MIL-V-22549 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 9524 W/VITON PKG 4101T5400PSI PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| D49-60UU-1/2-3/4 | Dante Valve Company (USA) |
| D49-60UU-12 1/2IN PRIMARY | Lockheed Martin Corporation Dba Lockheed Martin Rotary and Mission Systems Div Rms- C6isr (USA) |
| 9524 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-01-168-1877 is a Valve,safety Relief, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-168-1877 has 7 cross-referenced part numbers: 189RCS168X9524W/VIT4101T5400 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), D49-60UU-12 1/2IN (Danco Valve Company), MIL-V-22549 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 9524 W/VITON PKG 4101T5400PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), D49-60UU-1/2-3/4 (Dante Valve Company) and 2 more.
There are 12 known substitutes for 4820-01-168-1877: 5940-00-156-1508, 5120-00-180-0780, 5970-00-239-9073 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 189RCS168X9524W/VIT4101T5400: Material: STEEL COMP 304 SEAT; Material: STEEL COMP 316 BODY; Maximum Operating Temp: 180.0 FAHRENHEIT SINGLE RESPONSE DEGF; Connection Type: UNTHREADED INTERNAL TUBE FIRST END. 23 total characteristics are documented in the Federal Logistics Information System.