The Relay,electromagnetic, cataloged under National Stock Number 5945-01-283-0616, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Opto 22. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-01-283-0616 |
| Primary Part Number | OAC5A |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Opto 22 |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 280.0 AC |
| Main Contact Load Current Rating at Maximum Rated Voltage | 20.0 MILLIAMPERES AC RESISTIVE LOAD |
| Duty Type | CONTINUOUS |
| Frequency in Hertz | 25.0 MINIMUM AND 65.0 MAXIMUM |
| Nominal Operating Current Rating and Type | 3.0 AMPERES AC AND 2.0 AMPERES AC SINGLE WINDING |
| Coil Quantity | 1 |
| Environmental Protection | DUSTPROOF |
| Winding Quantity | 1 |
| Terminal Type and Quantity | 4 PIN ALL FUNCTIONS |
| Nonpile-Up Main Contact Arrangement | 1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION |
| 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 |
|---|---|
| 2004537Y00 | Safran (FRA) |
| OAC5A PRIMARY | Opto 22 (USA) |
| Reference | Meaning |
|---|---|
| 0AC5A | 5/9 Secondary reference U.S. Government activity |
| 2004537Y00 | 5/9 Secondary reference Sfim Ods (groupe Sfim) |
NSN 5945-01-283-0616 is a Relay,electromagnetic, manufactured by Opto 22, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-283-0616 has 2 manufacturer part numbers on file: 2004537Y00 (Safran), OAC5A (Opto 22).
Key specifications for OAC5A: Mounting Facility Type and Quantity: 4 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY; Overall Height: 1.400 INCHES NOMINAL IN; Main Contact Maximum Voltage Rating in Volts: 280.0 AC; Main Contact Load Current Rating at Maximum Rated Voltage: 20.0 MILLIAMPERES AC RESISTIVE LOAD. 11 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.