The Valve,safety Relief, cataloged under National Stock Number 4820-01-284-4873, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-01-284-4873 |
| Primary Part Number | 20-1.50IN SET 64PSI |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | CANCELLED |
| Valve Operation Method | AUTOMATIC |
| Bonnet Attachment Method | THREADED |
| Flow Control Device | BALL OR DISK |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Material | COPPER ALLOY BODY |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Bonnet Type | INSIDE SCREW |
| Connection Type | THREADED INTERNAL PIPE SECOND END |
| Connection Style | PLAIN (PIPE) FIRST END |
| Media for Which Designed | LIQUID SINGLE RESPONSE |
| Material | STEEL CORROSION RESISTING STEM |
| Opening Pressure Setting | 64.0 POUNDS PER SQUARE INCH LBS |
| Connection Style | PLAIN,OPTIONAL END(PIPE) SECOND END |
| Nominal Thread Size | 1.500 INCHES ALL ENDS IN |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Operating Pressure | 1200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Style Designator | ANGLE |
| Maximum Operating Temp | 300.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Thread Series Designator | NPT ALL ENDS |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 118 40T70PSI1-1/2IN1665 PL1841 | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| 20-1.50IN SET 64PSI PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| C13373 20 1.50IPS SET 64PSI | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 1665 | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
NSN 4820-01-284-4873 is a Valve,safety Relief, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-01-284-4873 has 4 cross-referenced part numbers: 118 40T70PSI1-1/2IN1665 PL1841 (Leslie Controls, Inc. Dba Leslie Controls Inc), 20-1.50IN SET 64PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), C13373 20 1.50IPS SET 64PSI (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 1665 (Leslie Controls, Inc. Dba Leslie Controls Inc).
There are 12 known substitutes for 4820-01-284-4873: 6240-00-241-9703, 5905-00-259-3935, 5330-00-285-4841 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20-1.50IN SET 64PSI: Valve Operation Method: AUTOMATIC; Bonnet Attachment Method: THREADED; Flow Control Device: BALL OR DISK; Connection Type: THREADED EXTERNAL PIPE FIRST END. 19 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-01-284-4873 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.