The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-604-0763, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Fisher Controls Co Inc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-00-604-0763 |
| Primary Part Number | 1C6796 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Fisher Controls Co Inc |
| Status | ACTIVE |
| Outside Diameter | 17.625 INCHES NOMINAL IN |
| Style Designator | FLAT |
| Material Thickness | 0.062 INCHES NOMINAL IN |
| Bolt Hole Quantity | 20 |
| Unable to Decode | UNABLE TO DECODE |
| Bolt Circle Diameter | 16.750 INCHES NOMINAL IN |
| Media for Which Designed | AIR |
| Hole Diameter | 0.380 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 |
|---|---|
| H7106396APC57 | Industrial Service and Supply, Inc (USA) |
| 1C6796 PRIMARY | Fisher Controls Co Inc (USA) |
| 712208A8 PRIMARY | Industrial Service and Supply, Inc (USA) |
| Reference | Meaning |
|---|---|
| 712208A8 | 5/9 Secondary reference Elsag Bailey Inc |
| H7106396APC57 | 5/9 Secondary reference Elsag Bailey Inc |
NSN 4820-00-604-0763 is a Diaphragm,valve,flat, manufactured by Fisher Controls Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-604-0763 has 3 manufacturer part numbers on file: H7106396APC57 (Industrial Service and Supply, Inc), 1C6796 (Fisher Controls Co Inc), 712208A8 (Industrial Service and Supply, Inc).
Key specifications for 1C6796: Outside Diameter: 17.625 INCHES NOMINAL IN; Style Designator: FLAT; Material Thickness: 0.062 INCHES NOMINAL IN; Bolt Hole Quantity: 20. 8 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.