The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-238-7820, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is General Electric Company. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-238-7820 |
| Primary Part Number | 1406M18P01 |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Body Style | STRAIGHT THRU W/ OFFSET GIVE "ADQL" ONLY WHEN BOTH ENDS FLANGED |
| Temp Control Device Type | THERMOSTATIC |
| Temp Adjustability | NOT ADJUSTABLE |
| Media for Which Designed | ANY ACCEPTABLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1406M18P01 PRIMARY | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 8819-03-3/8-LP-V | 5/9 Secondary reference Dynex/rivett Inc. |
NSN 4820-01-238-7820 is a Valve,relief,pressure and Temper, manufactured by General Electric Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-238-7820 has 1 manufacturer part number on file: 1406M18P01 (General Electric Company).
Key specifications for 1406M18P01: Flow Control Device: POPPET; Body Style: STRAIGHT THRU W/ OFFSET GIVE "ADQL" ONLY WHEN BOTH ENDS FLANGED; Temp Control Device Type: THERMOSTATIC; Temp Adjustability: NOT ADJUSTABLE. 5 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.