The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-228-4221, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Warren Controls, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Warren Controls, Inc. (CAGE 03847) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-228-4221 |
| Primary Part Number | 13310632 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Warren Controls, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 13310632 PRIMARY | Warren Controls, Inc. (USA) |
| 30805997 ITEM 9 | Warren Controls, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 4820PL1290410 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 4820-01-228-4221 is a Diaphragm,valve,flat, manufactured by Warren Controls, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-228-4221 has 2 manufacturer part numbers on file: 13310632 (Warren Controls, Inc.), 30805997 ITEM 9 (Warren Controls, Inc.).
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.