The Relay,electromagnetic, cataloged under National Stock Number 5945-00-188-5631, 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 American Telephone and Telegraph Co. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5945-00-188-5631 |
| Primary Part Number | 255ARELAY |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — No Item Name Available |
| Manufacturer | American Telephone and Telegraph Co |
| Status | CANCELLED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.188 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Duty Type | CONTINUOUS |
| Winding DC Resistance Rating | 136.0 OHMS NOMINAL SINGLE WINDING |
| Thread Class | 2A SINGLE MOUNTING FACILITY A |
| Nominal Thread Size | 0.250 INCHES SINGLE MOUNTING FACILITY IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY |
| Terminal Type and Quantity | 4 SCREW ENERGIZING ELEMENT |
| Mounting Facility Pattern | RECTANGULAR SINGLE MOUNTING FACILITY |
| Main Contact Load Current Rating at Maximum Rated Voltage | 2.0 AMPERES DC RESISTIVE LOAD |
| Mounting Facility Type and Quantity | 4 THREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Terminal Type and Quantity | 3 SCREW CONTACTS |
| Features Provided | POLARIZED |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 2.188 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Nominal Operating Current Rating and Type | 5.0 MILLIAMPERES DC ALL WINDINGS |
| Main Contact Maximum Voltage Rating in Volts | 110.0 DC |
| Winding Quantity | 2 |
| Environmental Protection | DUSTPROOF |
| Coil Quantity | 1 |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 255ARELAY | American Telephone and Telegraph Co (USA) |
| 255RELAY | At and T Corp (USA) |
| 255A | At and T Corp (USA) |
| 255A | American Telephone and Telegraph Co (USA) |
| 314A | American Telephone and Telegraph Co (USA) |
| 255A | Lucent Technologies Inc Corporate Headquarters (USA) |
| 314A | Lucent Technologies Inc Corporate Headquarters (USA) |
| F2255 | Codalex Ltd (CAN) |
NSN 5945-00-188-5631 is a Relay,electromagnetic, manufactured by American Telephone and Telegraph Co, classified under FSC 5945 (No Item Name Available). Status: cancelled.
NSN 5945-00-188-5631 has 8 cross-referenced part numbers: 255ARELAY (American Telephone and Telegraph Co), 255RELAY (At and T Corp), 255A (At and T Corp), 255A (American Telephone and Telegraph Co), 314A (American Telephone and Telegraph Co) and 3 more.
There are 12 known substitutes for 5945-00-188-5631: 6625-00-034-0540, 5905-00-108-6155, 5905-00-108-6486 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 255ARELAY: Overall Width: 2.680 INCHES NOMINAL IN; Center to Center Distance Between Mounting Facilities Parallel to Length: 2.188 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Duty Type: CONTINUOUS; Winding DC Resistance Rating: 136.0 OHMS NOMINAL SINGLE WINDING. 22 total characteristics are documented in the Federal Logistics Information System.
NSN 5945-00-188-5631 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.