The Contactor Assembly, cataloged under National Stock Number 2925-00-877-3780, is classified within Federal Supply Class 2925 (Engine Electrical System Components, Aircraft Prime Moving) of the Engine Accessories group. The manufacturer of record is Unison Industries Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Contactor Assembly |
| FSC / FSG | 2925 — Engine Electrical System Components, Aircraft Prime Moving (FSG 29) |
| Manufacturers | Unison Industries Llc (CAGE 59501) |
| Parameter | Value |
|---|---|
| NSN | 2925-00-877-3780 |
| Primary Part Number | 28137 |
| Item Name | Contactor Assembly |
| FSC / FSG | 2925 / 29 — Engine Electrical System Components, Aircraft Prime Moving |
| Manufacturer | Unison Industries Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 28137 PRIMARY | Unison Industries Llc (USA) |
| Reference | Meaning |
|---|---|
| 28137 | 5/9 Secondary reference U.S. Government activity |
NSN 2925-00-877-3780 is a Contactor Assembly, manufactured by Unison Industries Llc, classified under FSC 2925, Engine Electrical System Components, Aircraft Prime Moving. Status: active.
NSN 2925-00-877-3780 has 1 manufacturer part number on file: 28137 (Unison Industries Llc).
2 possible matches (shared part number, not a government interchangeability claim): 5998-01-313-1847, 5340-01-590-3805. Verify interchangeability with system specifications before substitution.
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 2925-00-877-3780 has DEMIL Code B. 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.