The Relay,electromagnetic, cataloged under National Stock Number 5945-00-658-5778, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is L3 Technologies, Inc. Div L3 Keo. The record lists 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | Relay,electromagnetic |
| FSC / FSG | 5945 — Relays and Solenoids (FSG 59) |
| Manufacturers | L3 Technologies, Inc. Div L3 Keo (CAGE 34228); Te Connectivity Corporation (CAGE 58614) |
| Parameter | Value |
|---|---|
| NSN | 5945-00-658-5778 |
| Primary Part Number | 528-25-3PCALL |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| 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 |
|---|---|
| 528-25-3PCALL PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| 8247-16 PRIMARY | Te Connectivity Corporation (USA) |
| 528-15REVBPC528-25-3 | L3 Technologies, Inc. Div L3 Keo (USA) |
| 528-25-3 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| Reference | Meaning |
|---|---|
| 8247-16 | 5/9 Secondary reference North American Philips Corp |
| 8247-16 | 5/9 Secondary reference U.S. Government activity |
| 528F032782 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
NSN 5945-00-658-5778 is a Relay,electromagnetic, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-00-658-5778 has 4 manufacturer part numbers on file: 528-25-3PCALL (L3 Technologies, Inc. Div L3 Keo), 8247-16 (Te Connectivity Corporation), 528-15REVBPC528-25-3 (L3 Technologies, Inc. Div L3 Keo), 528-25-3 (L3 Technologies, Inc. Div L3 Keo).
2 possible matches (shared part number, not a government interchangeability claim): 2840-00-917-8060, 3120-01-470-5174. 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.
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.