The Valve,safety Relief, cataloged under National Stock Number 4820-00-912-6842, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Pneudraulics, Inc.. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-912-6842 |
| Primary Part Number | 1983-1 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Pneudraulics, Inc. |
| Status | ACTIVE |
| Operating Pressure | 175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Seat Angle | 37.0 DEGREES FIRST END |
| Style Designator | STRAIGHT THRU |
| Opening Pressure Setting | 135.0 POUNDS PER SQUARE INCH LBS |
| Maximum Operating Temp | 275.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES SECOND END IN |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | UNTHREADED EXTERNAL TUBE SECOND END |
| Thread Quantity Per Inch | 12 FIRST END |
| Disk Loading Method | SPRING |
| Valve Discharge Flow Rate | 40.0 GALLONS PER MINUTE |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES FIRST END IN |
| Thread Direction | RIGHT-HAND FIRST END |
| Material | ALUMINUM ALLOY BODY |
| Thread Series Designator | UN FIRST END |
| Material | ALUMINUM ALLOY SEAT |
| Media for Which Designed | HYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE |
| Nominal Thread Size | 1.500 INCHES FIRST END IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1983-1 PRIMARY | Pneudraulics, Inc. (USA) |
NSN 4820-00-912-6842 is a Valve,safety Relief, manufactured by Pneudraulics, Inc., classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-912-6842 has 1 cross-referenced part number: 1983-1 (Pneudraulics, Inc.).
There are 7 known substitutes for 4820-00-912-6842: 6625-00-110-5229, 3455-00-232-4115, 5330-00-240-6527 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1983-1: Operating Pressure: 175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Seat Angle: 37.0 DEGREES FIRST END; Style Designator: STRAIGHT THRU; Opening Pressure Setting: 135.0 POUNDS PER SQUARE INCH LBS. 18 total characteristics are documented in the Federal Logistics Information System.