The Valve,safety Relief, cataloged under National Stock Number 4820-01-379-4962, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Aai Systems Management Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-379-4962 |
| Primary Part Number | 36801-40009-1 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Aai Systems Management Inc |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Opening Pressure Setting | 225.0 POUNDS PER SQUARE INCH LBS |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 36801-40009-1 PRIMARY | Aai Systems Management Inc (USA) |
| Reference | Meaning |
|---|---|
| 36801-40009 | D/9 Drawing number reference only Aai Systems Management Inc |
NSN 4820-01-379-4962 is a Valve,safety Relief, manufactured by Aai Systems Management Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-379-4962 has 1 manufacturer part number on file: 36801-40009-1 (Aai Systems Management Inc).
Key specifications for 36801-40009-1: Flow Control Device: DISK; Special Features: MATERIEL: MAKE FROM P/N 36801-90013; Opening Pressure Setting: 225.0 POUNDS PER SQUARE INCH LBS; Valve Operation Method: AUTOMATIC. 3 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.
NSN 4820-01-379-4962 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.