The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-641-0803, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dynamic Controls Ltd. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-641-0803 |
| Primary Part Number | 508-10/25 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dynamic Controls Ltd |
| 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 |
|---|---|
| 508-10/25 | Dynamic Controls Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 508-10/24 | 5/9 Secondary reference Cunico Corporation |
| 508-10/25 | 3/1 Design control — primary reference Cunico Corporation |
| DCL-1600-DN-CVN(SHT2) PART 18 | 5/9 Secondary reference Cunico Corporation |
NSN 4820-01-641-0803 is a Diaphragm,valve,flat, manufactured by Dynamic Controls Ltd, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-641-0803 has 1 manufacturer part number on file: 508-10/25 (Dynamic Controls Ltd).
Key specifications for 508-10/25: End Item Identification: HIGH PRESSURE GAS REDUCING VALVE MANIFOLD. 0 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.