The Valve,safety Relief, cataloged under National Stock Number 4820-01-351-5836, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Sullair Corp. 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-351-5836 |
| Primary Part Number | 040647 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Sullair Corp |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 040647 PRIMARY | Sullair Corp (USA) |
NSN 4820-01-351-5836 is a Valve,safety Relief, manufactured by Sullair Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-351-5836 has 1 manufacturer part number on file: 040647 (Sullair Corp).
1 possible match (shared part number, not a government interchangeability claim): 6550-01-521-6658. Verify interchangeability with system specifications before substitution.
Key specifications for 040647: Flow Control Device: DISK; Special Features: VALVE SIZE 1.000 IN. IN; Media for Which Designed: AIR SINGLE RESPONSE; End Item Identification: SULLAIR CORP AIR COMPRESSOR MODEL NO. H750/300. 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.
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.