The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-331-9980, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Clayton Manufacturing Company. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Clayton Manufacturing Company (CAGE 12736) |
| Parameter | Value |
|---|---|
| NSN | 4820-00-331-9980 |
| Primary Part Number | UH6216 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Clayton Manufacturing Company |
| 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 |
|---|---|
| UH6216 PRIMARY | Clayton Manufacturing Company (USA) |
| E1255PC2 PRIMARY | Clayton Manufacturing Company (USA) |
| UX170 PRIMARY | Clayton Manufacturing Company (USA) |
| E2355PC2 PRIMARY | Clayton Manufacturing Company (USA) |
| E1122PC2 PRIMARY | Clayton Manufacturing Company (USA) |
| Reference | Meaning |
|---|---|
| 3Y2324PC2 | 3/2 Design control — primary reference U.S. Government activity |
| S5101-442263PC2 | 3/2 Design control — primary reference U.S. Government activity |
| S5600-453958PC2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-00-331-9980 is a Diaphragm,valve,flat, manufactured by Clayton Manufacturing Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-331-9980 has 5 manufacturer part numbers on file: UH6216 (Clayton Manufacturing Company), E1255PC2 (Clayton Manufacturing Company), UX170 (Clayton Manufacturing Company), E2355PC2 (Clayton Manufacturing Company), E1122PC2 (Clayton Manufacturing Company).
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.