The Valve,safety Relief, cataloged under National Stock Number 4820-01-371-8806, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Superior Valve Co. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-371-8806 |
| Primary Part Number | 3214-300 SET 300PSI |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Superior Valve Co |
| Status | ACTIVE |
| Thread Class | 3A SECOND END A |
| Valve Operation Method | AUTOMATIC |
| Connection Style | FLARED (TUBE) SECOND END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Thread Series Designator | NPT FIRST END |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE FLOW CONTROL DEVICE |
| Material | COPPER ALLOY BODY |
| Style Designator | STRAIGHT THRU |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Thread Quantity Per Inch | 14 SECOND END |
| Maximum Operating Temp | 300.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Media for Which Designed | REFRIGERANT 22 SINGLE RESPONSE |
| Seat Angle | 37.0 DEGREES SECOND END |
| Connection Style | PLAIN (PIPE) FIRST END |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) SECOND END |
| Flow Control Device | DISK |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Nominal Thread Size | 0.875 INCHES SECOND END IN |
| Opening Pressure Setting | 300.0 POUNDS PER SQUARE INCH LBS |
| Nominal Thread Size | 0.500 INCHES FIRST END IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 90SM-125-0001 | Carrier Corp (USA) |
| 90SM-125-0001 ITEM 183 | Carrier Corp (USA) |
| 3214-300 SET 300PSI PRIMARY | Superior Valve Co (USA) |
NSN 4820-01-371-8806 is a Valve,safety Relief, manufactured by Superior Valve Co, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-371-8806 has 3 cross-referenced part numbers: 90SM-125-0001 (Carrier Corp), 90SM-125-0001 ITEM 183 (Carrier Corp), 3214-300 SET 300PSI (Superior Valve Co).
There are 4 known substitutes for 4820-01-371-8806: 4130-01-372-1493, 4120-01-372-1637, 4130-01-372-2976 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 3214-300 SET 300PSI: Thread Class: 3A SECOND END A; Valve Operation Method: AUTOMATIC; Connection Style: FLARED (TUBE) SECOND END; Connection Type: THREADED EXTERNAL PIPE FIRST END. 20 total characteristics are documented in the Federal Logistics Information System.