The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-335-9678, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 22 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-335-9678 |
| Primary Part Number | 1779AS106-2 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Valve Stem Design | SINGLE SEAT |
| Renewable Seat Ring Type | PRESSED-IN |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| Regulation Type | MANUAL SINGLE STAGE |
| First End Style Designator | PLAIN |
| Temp Rating | 131.0 FAHRENHEIT NOMINAL DEGF |
| Criticality Code Justification | FEAT |
| End Connection Quantity | 2 |
| Outlet Pressure Range | 1.0 TO 50.0 CAMERA MOUNT |
| Manual Control Method | WHEEL |
| Valve Loading Method | SPRING |
| First End Connection Type | THREADED INTERNAL PIPE |
| Material | BRASS SEAT |
| Material | STEEL FLOW CONTROL DEVICE |
| Material | STEEL STEM |
| Media for Which Designed | AIR |
| Maximum Inlet Pressure Rating | ERR-060 |
| Thread Size and Series/type Designator | 0.250-18 NPT FIRST END |
| Filter | NOT INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 1779AS106-2 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 3305564-2 | C/1 Advisory reference — outside the item-of-supply concept Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 3305564-2 | 5/2 Secondary reference U.S. Government activity |
| 40HE50 | 5/1 Secondary reference Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives |
| 1779AS106 | D/9 Drawing number reference only Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 4820-01-335-9678 is a Valve,regulating,fluid Pressure, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-335-9678 has 1 manufacturer part number on file: 1779AS106-2 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 1779AS106-2: Flow Control Device: DISK; Valve Stem Design: SINGLE SEAT; Renewable Seat Ring Type: PRESSED-IN; First End Thread Direction: RIGHT-HAND. 22 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.