The Valve,safety Relief, cataloged under National Stock Number 4820-00-959-5633, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Imi Cash Valve Inc. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-959-5633 |
| Primary Part Number | F52 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Imi Cash Valve Inc |
| Status | CANCELLED |
| Connection Style | PLAIN (PIPE) SECOND END |
| Connection Style | PLAIN,OPTIONAL END(PIPE) FIRST END |
| Bonnet Attachment Method | THREADED |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Material | COPPER ALLOY SEAT |
| Nominal Pipe Size Accommodated | 0.750 INCHES FIRST END IN |
| Bonnet Type | INSIDE SPRING |
| Valve Operation Method | AUTOMATIC OR MANUAL |
| Features Provided | VALVE STEM LOCK SHIELD |
| Material | COPPER ALLOY BODY |
| Nominal Pipe Size Accommodated | 0.750 INCHES SECOND END IN |
| Thread Direction | RIGHT-HAND FIRST END |
| Connection Type | THREADED INTERNAL PIPE FIRST END |
| Nominal Thread Size | 0.750 INCHES SECOND END IN |
| Flow Control Device | DISK |
| Media for Which Designed | STEAM SINGLE RESPONSE |
| Thread Series Designator | NPT SECOND END |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND SECOND END |
| Opening Pressure Setting | 125.0 POUNDS PER SQUARE INCH LBS |
| Disk Loading Method | SPRING |
| Style Designator | ANGLE |
| Material | COPPER ALLOY AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Material | STEEL CORROSION RESISTING STEM |
| Thread Series Designator | NPT FIRST END |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 4820-00-959-5633 is a Valve,safety Relief, manufactured by Imi Cash Valve Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-959-5633 has 2 cross-referenced part numbers: F52M (Imi Cash Valve Inc), F52 (Imi Cash Valve Inc).
There are 5 known substitutes for 4820-00-959-5633: 5310-00-275-0814, 5950-00-487-1990, 2540-00-622-3929 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for F52: Connection Style: PLAIN (PIPE) SECOND END; Connection Style: PLAIN,OPTIONAL END(PIPE) FIRST END; Bonnet Attachment Method: THREADED; Connection Type: THREADED EXTERNAL PIPE SECOND END. 26 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-959-5633 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.