The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-207-3647, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Industrial Service and Supply, Inc. Government technical data includes 7 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-207-3647 |
| Primary Part Number | 5319704D1 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Industrial Service and Supply, Inc |
| Status | ACTIVE |
| Material Thickness | 0.010 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 |
| Center to Center Distance Between Bolt Holes Along Length | 1.932 INCHES NOMINAL IN |
| Center to Center Distance Between Bolt Holes Along Width | 1.932 INCHES NOMINAL IN |
| Center Hole Diameter | 0.440 INCHES NOMINAL IN |
| Material | RUBBER |
| Hole Diameter | 0.245 INCHES NOMINAL IN |
| 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 |
|---|---|
| 5319704D1 PRIMARY | Industrial Service and Supply, Inc (USA) |
| Reference | Meaning |
|---|---|
| 5319704-1 | 5/9 Secondary reference Elsag Bailey Inc |
| 5319704D1 | 5/9 Secondary reference Elsag Bailey Inc |
NSN 4820-01-207-3647 is a Diaphragm,valve,flat, manufactured by Industrial Service and Supply, Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-207-3647 has 1 manufacturer part number on file: 5319704D1 (Industrial Service and Supply, Inc).
Key specifications for 5319704D1: Material Thickness: 0.010 INCHES NOMINAL IN; Bolt Hole Quantity: 4; Center to Center Distance Between Bolt Holes Along Length: 1.932 INCHES NOMINAL IN; Center to Center Distance Between Bolt Holes Along Width: 1.932 INCHES NOMINAL IN. 7 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.