The Diaphragm,actuator Valve,special, cataloged under National Stock Number 4820-00-369-8049, 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 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-369-8049 |
| Primary Part Number | 712222A1 |
| Item Name | Diaphragm,actuator Valve,special |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Industrial Service and Supply, Inc |
| Status | ACTIVE |
| Bead Diameter | 14.500 INCHES NOMINAL IN |
| Outside Diameter | 18.500 INCHES NOMINAL IN |
| Taper Minor Diameter | 13.250 INCHES NOMINAL IN |
| Style Designator | SPECIAL SHAPED |
| Taper Major Diameter | 14.000 INCHES NOMINAL IN |
| Material Thickness | 0.090 INCHES NOMINAL IN |
| Bolt Hole Quantity | 24 |
| Bolt Circle Diameter | 17.375 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC |
| Hole Diameter | 0.395 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 |
|---|---|
| 712222A1 PRIMARY | Industrial Service and Supply, Inc (USA) |
| Reference | Meaning |
|---|---|
| 712222A1 | 5/9 Secondary reference Elsag Bailey Inc |
NSN 4820-00-369-8049 is a Diaphragm,actuator Valve,special, manufactured by Industrial Service and Supply, Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-369-8049 has 1 manufacturer part number on file: 712222A1 (Industrial Service and Supply, Inc).
Key specifications for 712222A1: Overall Height: 2.000 INCHES NOMINAL IN; Bead Diameter: 14.500 INCHES NOMINAL IN; Outside Diameter: 18.500 INCHES NOMINAL IN; Taper Minor Diameter: 13.250 INCHES NOMINAL IN. 10 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.