The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-304-3736, 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 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-304-3736 |
| Primary Part Number | H7835 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Richards Industries Valve Group Jordan Valve Div |
| Status | ACTIVE |
| Outside Diameter | 4.050 INCHES NOMINAL IN |
| Style Designator | FLAT |
| Material Thickness | 0.005 INCHES NOMINAL IN |
| Center Hole Diameter | 0.508 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| H7835 PRIMARY | Richards Industries Valve Group Jordan Valve Div (USA) |
| CA66152PC10V | Richards Industries Valve Group Jordan Valve Div (USA) |
NSN 4820-00-304-3736 is a Diaphragm,valve,flat, manufactured by Richards Industries Valve Group Jordan Valve Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-304-3736 has 2 manufacturer part numbers on file: H7835 (Richards Industries Valve Group Jordan Valve Div), CA66152PC10V (Richards Industries Valve Group Jordan Valve Div).
1 possible match (shared part number, not a government interchangeability claim): 6130-01-169-1398. Verify interchangeability with system specifications before substitution.
Key specifications for H7835: Outside Diameter: 4.050 INCHES NOMINAL IN; Style Designator: FLAT; Material Thickness: 0.005 INCHES NOMINAL IN; Center Hole Diameter: 0.508 INCHES NOMINAL IN. 5 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.