The Relay Box,nav Mode, cataloged under National Stock Number 1680-01-097-0174, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Welding Metallurgy, Inc.. Government technical data includes 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-01-097-0174 |
| Primary Part Number | 160D145315-3 |
| Item Name | Relay Box,nav Mode |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Welding Metallurgy, Inc. |
| Status | ACTIVE |
| FSC Application Data | EQUIPMENT INSTALLATION,FUSELAGE STA 268 TO 365,RH UPPER |
| General Characteristics Item Description | PROVIDES THE CONNECTION FOR THE ADI AND HSI INSTRUMENTS TO THE OUTPUT OF THE SYSTEM SELECTED ON THE NAV MODE FRONT PANEL; PROVIDES STOW SIGNAL FOR INDICATOR LIGHTS; CONSISTS OF 51 RELAYS,19 RESISTORS,2 TRANSFORMERS,6 DIODES,1 CAPACITOR,30 MODULES,3 TERMINAL BOARDS,6 CONNECTORS,1 PLUG-ON HARNESS; TOP OF BOX PROVIDES SURFACE FOR DUAL PURPOSE AMPLIFIER; OVERALL DIMENSIONS - HEIGHT 2.560 IN.,WIDTH 11.880 IN.,LENGTH 17.380 IN.; WEIGHT 15.5 LBS; POWER SUPPLY - 28VDC,115V,400 HZ VDC |
| 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 |
|---|---|
| 160D145315-3 PRIMARY | Welding Metallurgy, Inc. (USA) |
| 160D145315-3 PRIMARY | Smith and Smith Aircraft Co (USA) |
| Reference | Meaning |
|---|---|
| 160D145315-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 160D145315-3 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 160D145315-3 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
NSN 1680-01-097-0174 is a Relay Box,nav Mode, manufactured by Welding Metallurgy, Inc., classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-097-0174 has 2 manufacturer part numbers on file: 160D145315-3 (Welding Metallurgy, Inc.), 160D145315-3 (Smith and Smith Aircraft Co).
Key specifications for 160D145315-3: FSC Application Data: EQUIPMENT INSTALLATION,FUSELAGE STA 268 TO 365,RH UPPER; General Characteristics Item Description: PROVIDES THE CONNECTION FOR THE ADI AND HSI INSTRUMENTS TO THE OUTPUT OF THE SYSTEM SELECTED ON THE NAV MODE FRONT PANEL; PROVIDES STOW SIGNAL FOR INDICATOR LIGHTS; CONSISTS OF 51 RELAYS,19 RESISTORS,2 TRANSFORMERS,6 DIODES,1 CAPACITOR,30 MODULES,3 TERMINAL BOARDS,6 CONNECTORS,1 PLUG-ON HARNESS; TOP OF BOX PROVIDES SURFACE FOR DUAL PURPOSE AMPLIFIER; OVERALL DIMENSIONS - HEIGHT 2.560 IN.,WIDTH 11.880 IN.,LENGTH 17.380 IN.; WEIGHT 15.5 LBS; POWER SUPPLY - 28VDC,115V,400 HZ VDC; End Item Identification: A-10A AIRCRAFT A. 2 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 1680-01-097-0174 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.