The Diaphragm,actuator Valve,special, cataloged under National Stock Number 4820-01-237-6473, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road). Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-237-6473 |
| Primary Part Number | 3163370-6 |
| Item Name | Diaphragm,actuator Valve,special |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| Pressure Rating | 30.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Temp Rating | 400.0 FAHRENHEIT NOMINAL DEGF |
| Outside Diameter | 3.250 INCHES MINIMUM AND 3.270 INCHES MAXIMUM IN |
| Taper Minor Diameter | 2.298 INCHES NOMINAL IN |
| Style Designator | SPECIAL SHAPED |
| Taper Major Diameter | 2.765 INCHES MINIMUM AND 2.790 INCHES MAXIMUM IN |
| Material Thickness | 0.012 INCHES MINIMUM AND 0.022 INCHES MAXIMUM IN |
| Bolt Hole Quantity | 8 |
| Bolt Circle Diameter | 3.250 INCHES NOMINAL IN |
| Center Hole Diameter | 0.210 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN |
| Media for Which Designed | AIR |
| Material | RUBBER |
| Hole Diameter | 0.220 INCHES MINIMUM AND 0.240 INCHES MAXIMUM 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 |
|---|---|
| 3163370-6 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 3163370 | D/9 Drawing number reference only Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
NSN 4820-01-237-6473 is a Diaphragm,actuator Valve,special, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-237-6473 has 1 manufacturer part number on file: 3163370-6 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for 3163370-6: Overall Height: 1.260 INCHES MINIMUM AND 1.280 INCHES MAXIMUM IN; Pressure Rating: 30.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Temp Rating: 400.0 FAHRENHEIT NOMINAL DEGF; Outside Diameter: 3.250 INCHES MINIMUM AND 3.270 INCHES MAXIMUM IN. 13 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.