The Relay,electromagnetic, cataloged under National Stock Number 5945-00-710-7645, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Asco Power Services Inc Dba Asco Emergency Power Maintenance Incorporated. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5945-00-710-7645 |
| Primary Part Number | 66-437 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Asco Power Services Inc Dba Asco Emergency Power Maintenance Incorporated |
| Status | ACTIVE |
| Coil Quantity | 1 |
| Winding Quantity | 1 |
| Terminal Type and Quantity | 2 PIN ALL FUNCTIONS |
| 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 |
|---|---|
| 66-437 PRIMARY | Asco Power Services Inc Dba Asco Emergency Power Maintenance Incorporated (USA) |
| Reference | Meaning |
|---|---|
| 66-437 | 5/2 Secondary reference U.S. Government activity |
| 66-437 | 5/9 Secondary reference Automatic Switch Company Dba Asco |
NSN 5945-00-710-7645 is a Relay,electromagnetic, manufactured by Asco Power Services Inc Dba Asco Emergency Power Maintenance Incorporated, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-00-710-7645 has 1 manufacturer part number on file: 66-437 (Asco Power Services Inc Dba Asco Emergency Power Maintenance Incorporated).
2 possible matches (shared part number, not a government interchangeability claim): 4320-01-319-5452, 6150-01-649-4926. Verify interchangeability with system specifications before substitution.
Key specifications for 66-437: Coil Quantity: 1; Winding Quantity: 1; Terminal Type and Quantity: 2 PIN ALL FUNCTIONS. 3 specifications are 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.