The Relay,electromagnetic, cataloged under National Stock Number 5945-00-549-4900, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Stromberg-Carlson Corp a Plessey Telecommunications Co. Government technical data includes 15 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5945-00-549-4900 |
| Primary Part Number | 290803-000 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Stromberg-Carlson Corp a Plessey Telecommunications Co |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 THREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Pile-Up Main Contact Form Arrangement | 2C1B |
| Main Contact Maximum Voltage Rating in Volts | 37.5 AC |
| Mounting Facility Pattern | IN-LINE SINGLE MOUNTING FACILITY |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 0.750 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Main Contact Load Current Rating at Maximum Rated Voltage | 4.0 AMPERES AC RESISTIVE LOAD |
| Duty Type | CONTINUOUS |
| Winding DC Resistance Rating | 1.13 KILOHMS NOMINAL SINGLE WINDING |
| Nominal Thread Size | 0.138 INCHES SINGLE MOUNTING FACILITY IN |
| Coil Quantity | 1 |
| Winding Quantity | 1 |
| Operating Voltage Rating and Type at Specified Temp | 56.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Thread Class | 2B SINGLE MOUNTING FACILITY |
| Terminal Type and Quantity | 10 PIN ALL FUNCTIONS |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY |
| 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 |
|---|---|
| 290803-000 PRIMARY | Stromberg-Carlson Corp a Plessey Telecommunications Co (USA) |
| A35759 | Te Connectivity Corporation (USA) |
| Reference | Meaning |
|---|---|
| A35759 | 5/9 Secondary reference Cp Clare Corp North American Sales Operations |
| 290803-000 | 5/9 Secondary reference Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc |
| K8896683-1 | 5/9 Secondary reference Rca Corp Distributor and Special Products Div |
| K8896683-1 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
| 290803 | C/1 Advisory reference — outside the item-of-supply concept Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc |
| A35759 | 5/9 Secondary reference Te Connectivity Corporation |
NSN 5945-00-549-4900 is a Relay,electromagnetic, manufactured by Stromberg-Carlson Corp a Plessey Telecommunications Co, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-00-549-4900 has 2 manufacturer part numbers on file: 290803-000 (Stromberg-Carlson Corp a Plessey Telecommunications Co), A35759 (Te Connectivity Corporation).
1 possible match (shared part number, not a government interchangeability claim): 2530-01-157-3554. Verify interchangeability with system specifications before substitution.
Key specifications for 290803-000: Mounting Facility Type and Quantity: 2 THREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 1.400 INCHES NOMINAL IN; Pile-Up Main Contact Form Arrangement: 2C1B; Main Contact Maximum Voltage Rating in Volts: 37.5 AC. 15 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.