The Ignition Harness Ki, cataloged under National Stock Number 2990-01-379-5219, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Unison Industries Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2990-01-379-5219 |
| Primary Part Number | M-1820 |
| Item Name | Ignition Harness Ki |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Unison Industries Llc |
| Status | ACTIVE |
| General Characteristics Item Description | COMPONENTS - NUT 130; WASHER 27; SLEEVE 84; FERRULE 137; SCREW 100; WIRE (FT) 50; PIN 100; SPRING 112; TOOL KIT 1 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| M-1820 PRIMARY | Unison Industries Llc (USA) |
| Reference | Meaning |
|---|---|
| M-1820 | 5/9 Secondary reference Unison Industries Inc Slick Products Div |
NSN 2990-01-379-5219 is a Ignition Harness Ki, manufactured by Unison Industries Llc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-379-5219 has 1 manufacturer part number on file: M-1820 (Unison Industries Llc).
1 possible match (shared part number, not a government interchangeability claim): 5985-01-433-2789. Verify interchangeability with system specifications before substitution.
Key specifications for M-1820: General Characteristics Item Description: COMPONENTS - NUT 130; WASHER 27; SLEEVE 84; FERRULE 137; SCREW 100; WIRE (FT) 50; PIN 100; SPRING 112; TOOL KIT 1. 1 specification is 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.