The Relay,electromagnetic, cataloged under National Stock Number 5945-01-457-3078, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Cospolich Inc.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 — Relays and Solenoids (FSG 59) |
| Manufacturers | Cospolich Inc. (CAGE 66682) |
| Parameter | Value |
|---|---|
| NSN | 5945-01-457-3078 |
| Primary Part Number | 940-0088-04 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Cospolich Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 940-0088-04 PRIMARY | Cospolich Inc. (USA) |
| RWRLY54 | Cospolich Inc. (USA) |
| Reference | Meaning |
|---|---|
| RWRLY54 | 3/9 Design control — primary reference Copeland Corp |
| 940-0102-03 | C/1 Advisory reference — outside the item-of-supply concept Copeland Corp |
NSN 5945-01-457-3078 is a Relay,electromagnetic, manufactured by Cospolich Inc., classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-457-3078 has 2 manufacturer part numbers on file: 940-0088-04 (Cospolich Inc.), RWRLY54 (Cospolich Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5945-01-517-9146. 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.