The Arm,switch Actuator, cataloged under National Stock Number 5930-01-139-1979, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.. 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-139-1979 |
| Primary Part Number | 178593-K1 |
| Item Name | Arm,switch Actuator |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | 3.000 IN. LG; 2.625 IN. W; TWO 0.564 IN. MAXIMUM DIA MTG HOLES SPACED 1.625 IN. C TO C IN |
| 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 |
|---|---|
| 178593-K1 PRIMARY | L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA) |
NSN 5930-01-139-1979 is a Arm,switch Actuator, manufactured by L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc., classified under FSC 5930, Switches. Status: active.
NSN 5930-01-139-1979 has 1 manufacturer part number on file: 178593-K1 (L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-480-6512. Verify interchangeability with system specifications before substitution.
Key specifications for 178593-K1: General Characteristics Item Description: 3.000 IN. LG; 2.625 IN. W; TWO 0.564 IN. MAXIMUM DIA MTG HOLES SPACED 1.625 IN. C TO C IN. 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.