The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-239-4036, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Pall Aeropower Corporation. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-239-4036 |
| Primary Part Number | WA0019424D9W2A |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Pall Aeropower Corporation |
| Status | ACTIVE |
| Reference Number Differentiating Characteristics | MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION |
| 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 |
|---|---|
| WA0019424D9W2A | Pall Aeropower Corporation (USA) |
| WA-00194-24D9W2AVM | Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div (USA) |
| Reference | Meaning |
|---|---|
| WA-00194-24D9W2A | 3/1 Design control — primary reference Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div |
NSN 4820-01-239-4036 is a Valve,relief,pressure and Temper, manufactured by Pall Aeropower Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-239-4036 has 2 manufacturer part numbers on file: WA0019424D9W2A (Pall Aeropower Corporation), WA-00194-24D9W2AVM (Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div).
Key specifications for WA0019424D9W2A: Reference Number Differentiating Characteristics: MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION. 1 specification is 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.