The Switch Subassembly, cataloged under National Stock Number 5930-01-330-3539, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5930-01-330-3539 |
| Primary Part Number | 1978163-231 |
| Item Name | Switch Subassembly |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Component Type and Quantity | 1 LENS AND 1 RETAINER AND 1 SEAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1978163-231 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 4472-231 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5930-01-330-3539 is a Switch Subassembly, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-330-3539 has 1 manufacturer part number on file: 1978163-231 (Northrop Grumman Systems Corporation).
Key specifications for 1978163-231: Component Type and Quantity: 1 LENS AND 1 RETAINER AND 1 SEAL; Special Features: LEGEND INSCRIPTION READS RUN; C/O LED CAPSULE ASSY 1, LENS 1, LENS RETAINER 1, MOISTURE SEAL 1. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.