The Valve,safety Relief, cataloged under National Stock Number 4820-00-980-4943, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Trw Inc Trw Mission Drillling Products Div. Government technical data includes 16 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-980-4943 |
| Primary Part Number | 2-912 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Trw Inc Trw Mission Drillling Products Div |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 2.000 INCHES SECOND END IN |
| Renewable Seat Ring Type | THREADED |
| Disk Loading Method | SPRING |
| Valve Operation Method | AUTOMATIC |
| Connection Type | THREADED INTERNAL PIPE FIRST END |
| Style Designator | ANGLE |
| Adjustable Pressure Range | +15.0 TO 35.0 POUNDS PER SQUARE INCH LBS |
| Reference Number Differentiating Characteristics | CLEANED IN ACCORDANCE WITH MIL-P-52211/CE/ |
| Connection Style | PLAIN,OPTIONAL END(PIPE) FIRST END |
| Thread Direction | RIGHT-HAND SECOND END |
| Flow Control Device | POPPET |
| Connection Type | THREADED INTERNAL PIPE SECOND END |
| Bonnet Type | INSIDE SPRING |
| Thread Direction | RIGHT-HAND FIRST END |
| Opening Pressure Setting | 25.0 POUNDS PER SQUARE INCH LBS |
| Nominal Pipe Size Accommodated | 1.500 INCHES FIRST END IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2-912 | Trw Inc Trw Mission Drillling Products Div (USA) |
NSN 4820-00-980-4943 is a Valve,safety Relief, manufactured by Trw Inc Trw Mission Drillling Products Div, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-980-4943 has 1 cross-referenced part number: 2-912 (Trw Inc Trw Mission Drillling Products Div).
There are 9 known substitutes for 4820-00-980-4943: 5975-00-081-9401, 3110-00-156-1889, 3130-00-289-6679 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2-912: Nominal Pipe Size Accommodated: 2.000 INCHES SECOND END IN; Renewable Seat Ring Type: THREADED; Disk Loading Method: SPRING; Valve Operation Method: AUTOMATIC. 16 total characteristics are documented in the Federal Logistics Information System.