The Relay,thermal, cataloged under National Stock Number 5945-00-259-4378, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Amperite Co Inc. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5945-00-259-4378 |
| Primary Part Number | 26C8 |
| Item Name | Relay,thermal |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Amperite Co Inc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 OCTAL BASE PLUG-IN |
| Contact Maximum Voltage Rating in Volts | 115.0 AC |
| Delay Time in Seconds | 8.0 FIXED OPERATE NOMINAL |
| Contact Arrangement | SINGLE POLE, SINGLE THROW, NORMALLY CLOSED |
| Overall Diameter | 1.250 INCHES NOMINAL IN |
| Heater Power Rating in Watts | 2.0 |
| Heater Voltage Rating in Volts | 26.5 |
| Contact Maximum Current Rating in Amps | 2.0 AC |
| Environmental Protection | HERMETIC |
| Terminal Type and Quantity | 4 PIN |
| 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 |
|---|---|
| 26C8 PRIMARY | Amperite Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 34-494 | 5/2 Secondary reference U.S. Government activity |
| 57-4034 | 5/9 Secondary reference Seeburg Corp the Seeburg Products Div |
NSN 5945-00-259-4378 is a Relay,thermal, manufactured by Amperite Co Inc, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-00-259-4378 has 1 manufacturer part number on file: 26C8 (Amperite Co Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5950-01-271-8113, 5985-01-506-6508. Verify interchangeability with system specifications before substitution.
Key specifications for 26C8: Mounting Facility Type and Quantity: 1 OCTAL BASE PLUG-IN; Contact Maximum Voltage Rating in Volts: 115.0 AC; Delay Time in Seconds: 8.0 FIXED OPERATE NOMINAL; Contact Arrangement: SINGLE POLE, SINGLE THROW, NORMALLY CLOSED. 10 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.