The Valve,safety Relief, cataloged under National Stock Number 4820-01-506-5204, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Sterling Hydraulics Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Sts Operating, Inc. Dba Sunsource/fauver Div Sunsource (CAGE 3QTH9); Sterling Hydraulics Inc (CAGE 0FHH8) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-506-5204 |
| Primary Part Number | A04B2HZN |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Sterling Hydraulics Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| FV-5776-AAD5GJH ITEM 10 | Sts Operating, Inc. Dba Sunsource/fauver Div Sunsource (USA) |
| A04B2HZN PRIMARY | Sterling Hydraulics Inc (USA) |
| Reference | Meaning |
|---|---|
| FV-5776-AAD5GJH ITEM 10 | 5/9 Secondary reference Fauver J N Co Inc Mobile Engineering Center |
NSN 4820-01-506-5204 is a Valve,safety Relief, manufactured by Sterling Hydraulics Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-506-5204 has 2 manufacturer part numbers on file: FV-5776-AAD5GJH ITEM 10 (Sts Operating, Inc. Dba Sunsource/fauver Div Sunsource), A04B2HZN (Sterling Hydraulics Inc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-713-7315. Verify interchangeability with system specifications before substitution.
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.