The Relay,thermal, cataloged under National Stock Number 5945-00-604-9618, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5945-00-604-9618 |
| Primary Part Number | 990221 |
| Item Name | Relay,thermal |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) |
| Contact Maximum Voltage Rating in Volts | 600.0 AC |
| Contact Arrangement | SINGLE POLE, SINGLE THROW, NORMALLY CLOSED |
| Contact Maximum Current Rating in Amps | 25.0 AC |
| Terminal Type and Quantity | 4 SCREW |
| 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 |
|---|---|
| TA3852 | L3 Technologies, Inc. Div L3 Keo (USA) |
| 990221 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 42555WITHHTR42002 | 5/9 Secondary reference Cooper Industries Inc Cooper Distribution Equipment Div |
NSN 5945-00-604-9618 is a Relay,thermal, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-00-604-9618 has 2 manufacturer part numbers on file: TA3852 (L3 Technologies, Inc. Div L3 Keo), 990221 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-157-9837, 6530-01-465-8418. Verify interchangeability with system specifications before substitution.
Key specifications for 990221: Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S); Overall Height: 2.625 INCHES NOMINAL IN; Contact Maximum Voltage Rating in Volts: 600.0 AC; Contact Arrangement: SINGLE POLE, SINGLE THROW, NORMALLY CLOSED. 5 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.