The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-220-0116, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Richards Industries Valve Group Jordan Valve Div. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-220-0116 |
| Primary Part Number | 7837-326 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Richards Industries Valve Group Jordan Valve Div |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 7837-326 PRIMARY | Richards Industries Valve Group Jordan Valve Div (USA) |
| Reference | Meaning |
|---|---|
| 8193-303 | C/1 Advisory reference — outside the item-of-supply concept Richards Industries Valve Group Jordan Valve Div |
| 7837-303 | 5/9 Secondary reference Richards Industries Valve Group Jordan Valve Div |
| MK60-184980A-9 | C/1 Advisory reference — outside the item-of-supply concept Richards Industries Valve Group Jordan Valve Div |
| 10V 1 1/2IN.MK50 | 5/9 Secondary reference Richards Industries Valve Group Jordan Valve Div |
NSN 4820-01-220-0116 is a Diaphragm,valve,flat, manufactured by Richards Industries Valve Group Jordan Valve Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-220-0116 has 1 manufacturer part number on file: 7837-326 (Richards Industries Valve Group Jordan Valve Div).
Key specifications for 7837-326: End Item Identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS; Material: STEEL CORROSION RESISTING. 1 specification is 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.