The Valve,safety Relief, cataloged under National Stock Number 4820-01-475-2657, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dante Valve Company. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Dante Valve Company (CAGE 5P967) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-475-2657 |
| Primary Part Number | DXE62-.75-000 ASSY CKCNN05CDD |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dante Valve Company |
| 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 |
|---|---|
| DXE62-.75-000 ASSY CKCNN05CDD PRIMARY | Dante Valve Company (USA) |
| CKCNN05JDD | Dante Valve Company (USA) |
| Reference | Meaning |
|---|---|
| DXE62-.75-000 ASSY CKCNN05CDD | 5/9 Secondary reference Danco Valve Company |
| CKCNN05JDD | 5/9 Secondary reference Danco Valve Company |
| CKCNN05CDD | 3/9 Design control — primary reference Danco Valve Company |
| DXE62-.75-000 | D/9 Drawing number reference only Danco Valve Company |
NSN 4820-01-475-2657 is a Valve,safety Relief, manufactured by Dante Valve Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-475-2657 has 2 manufacturer part numbers on file: DXE62-.75-000 ASSY CKCNN05CDD (Dante Valve Company), CKCNN05JDD (Dante Valve Company).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-475-2701. 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.