The Panel,fault-Function Indicator,a, cataloged under National Stock Number 1680-01-434-1979, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1680-01-434-1979 |
| Primary Part Number | 844182-14 |
| Item Name | Panel,fault-Function Indicator,a |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Audible Signal Type | HORN |
| Visual Signal Type | LAMP |
| Relay Box Overall Depth | 5.565 INCHES NOMINAL IN |
| Relay Box Mounting | SEPARATE |
| Voltage in Volts | 28.0 |
| Reset Type | MANUAL |
| Signal Device Quantity | 104 |
| Relay Box Overall Length | 12.375 INCHES NOMINAL IN |
| Relay Box Overall Width | 5.700 INCHES NOMINAL IN |
| Surface Treatment | PAINT |
| Material | ALUMINUM |
| Mounting Type | PANEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 844182-14 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| 70550-21900-115 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| 844182-14 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1680-01-434-1979 is a Panel,fault-Function Indicator,a, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-434-1979 has 2 manufacturer part numbers on file: 844182-14 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 70550-21900-115 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 844182-14: Audible Signal Type: HORN; Overall Height: 11.125 INCHES NOMINAL IN; Visual Signal Type: LAMP; Relay Box Overall Depth: 5.565 INCHES NOMINAL IN. 12 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.
NSN 1680-01-434-1979 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.