The Relay,electromagnetic, cataloged under National Stock Number 5945-00-491-4819, is classified within Federal Supply Class 5945 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Mcnab, Incorporated. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-00-491-4819 |
| Primary Part Number | 12027 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — No Item Name Available |
| Manufacturer | Mcnab, Incorporated |
| Status | ACTIVE |
| Precious Material | SILVER |
| Terminal Type and Quantity | 5 PIN ALL FUNCTIONS |
| Environmental Protection | DUSTPROOF |
| Duty Type | CONTINUOUS |
| Operating Voltage Rating and Type at Specified Temp | 26.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING |
| Main Contact Maximum Voltage Rating in Volts | 120.0 AC AND 28.0 DC |
| Material | SILVER CONTACT |
| Winding DC Resistance Rating | 5.0 KILOHMS NOMINAL SINGLE WINDING |
| Nonpile-Up Main Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Mounting Facility Type and Quantity | 1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY |
| Coil Quantity | 1 |
| Frequency in Hertz | 60.0 NOMINAL |
| Winding Quantity | 1 |
| Main Contact Load Current Rating at Maximum Rated Voltage | 500.0 MILLIAMPERES AC AND 500.0 MILLIAMPERES DC RESISTIVE LOAD |
| Precious Material and Location | CONTACT SILVER |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 12027 | Mcnab, Incorporated (USA) |
| 5RS26ASSIL | Sigma Instruments Inc (USA) |
| M5RS-A | Mcnab, Incorporated (USA) |
| 51S-1039 | Omntec Manufacturing Inc (USA) |
NSN 5945-00-491-4819 is a Relay,electromagnetic, manufactured by Mcnab, Incorporated, classified under FSC 5945 (No Item Name Available). Status: active.
NSN 5945-00-491-4819 has 4 cross-referenced part numbers: 12027 (Mcnab, Incorporated), 5RS26ASSIL (Sigma Instruments Inc), M5RS-A (Mcnab, Incorporated), 51S-1039 (Omntec Manufacturing Inc).
There are 12 known substitutes for 5945-00-491-4819: 4320-00-147-0296, 4730-00-177-1818, 4730-00-187-4385 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 12027: Precious Material: SILVER; Terminal Type and Quantity: 5 PIN ALL FUNCTIONS; Overall Width: 1.500 INCHES NOMINAL IN; Environmental Protection: DUSTPROOF. 18 total characteristics are documented in the Federal Logistics Information System.