PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

388AJX-27Relay,electromagnetic

Se Relays Llc (magnecraft) Div Se Relays Llc (magnecraft) · NSN 5945-00-543-9587 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-543-9587 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-543-9587. Primary manufacturer part number: 388AJX-27.
Features
  • Relay,electromagnetic — FSC 5945
  • Mounting Facility Pattern: IN-LINE SINGLE MOUNTING FACILITY
  • Mounting Facility Type and Quantity: 2 THREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Winding Quantity: 1
  • Thread Class: 2B SINGLE MOUNTING FACILITY
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
  • Main Contact Load Current Rating at Maximum Rated Voltage: 5.0 AMPERES AC AND 5.0 AMPERES DC RESISTIVE LOAD
  • Winding DC Resistance Rating: 450.0 OHMS NOMINAL SINGLE WINDING
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-543-9587, 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 Se Relays Llc (magnecraft) Div Se Relays Llc (magnecraft). Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5945-00-543-9587
Primary Part Number388AJX-27
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerSe Relays Llc (magnecraft) Div Se Relays Llc (magnecraft)
StatusCANCELLED
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Mounting Facility Type and Quantity2 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Winding Quantity1
Thread Class2B SINGLE MOUNTING FACILITY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Main Contact Load Current Rating at Maximum Rated Voltage5.0 AMPERES AC AND 5.0 AMPERES DC RESISTIVE LOAD
Winding DC Resistance Rating450.0 OHMS NOMINAL SINGLE WINDING
Nominal Operating Current Rating and Type10.0 AMPERES AC SINGLE WINDING
Nominal Thread Size0.138 INCHES SINGLE MOUNTING FACILITY IN
Terminal Type and Quantity5 PIN ALL FUNCTIONS
Operating Voltage Rating and Type at Specified Temp115.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING
Duty TypeCONTINUOUS
Pile-Up Main Contact Form Arrangement1C
Main Contact Maximum Voltage Rating in Volts115.0 AC AND 26.5 DC
Thread Quantity Per Inch32 SINGLE MOUNTING FACILITY
Coil Quantity1
Frequency in Hertz60.0 NOMINAL
Center to Center Distance Between Mounting Facilities Parallel to Length2.000 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5999-00-166-9771953 INTERCHANGEABLE
Contact Assembly,electrical
Anderson Airmotive Inc
2990-00-411-24791883 INTERCHANGEABLE
Muffler,exhaust
Arvin Industries Inc
2530-00-470-6403MP00214 INTERCHANGEABLE
Wheel Assembly,pneumatic Tire
Load King, Llc Div Load King
5340-00-497-5394BH502 INTERCHANGEABLE
Hanger,pipe
Egs Electrical Group Appleton Div
5120-00-595-8423 INTERCHANGEABLE
Puller Attachment,mechanical
5975-00-642-8502 INTERCHANGEABLE
Chase Nipple,conduit
5915-00-752-4458 INTERCHANGEABLE
Filter,band Pass
5961-00-755-4349 INTERCHANGEABLE
Transistor
5325-00-854-6677752732-004 INTERCHANGEABLE
Eyelet,metallic
Lockheed Martin Corporation Div Rms - Mitchel Field
5930-00-881-6314953 INTERCHANGEABLE
Switch,push
Switchcraft Inc.
Cross-Reference Index
Part NumberManufacturer
953 Se Relays Llc (magnecraft) Div Se Relays Llc (magnecraft) (USA)
94AX-4 Se Relays Llc (magnecraft) Div Se Relays Llc (magnecraft) (USA)
W94AX-4 Se Relays Llc (magnecraft) Div Se Relays Llc (magnecraft) (USA)
625ARX-19 Se Relays Llc (magnecraft) Div Se Relays Llc (magnecraft) (USA)
PC1C115VAC Se Relays Llc (magnecraft) Div Se Relays Llc (magnecraft) (USA)
388AJX-27 PRIMARY Se Relays Llc (magnecraft) Div Se Relays Llc (magnecraft) (USA)
Related Parts
5999-00-166-9771INTERCHANGEABLE
CONTACT ASSEMBLY,ELECTRICAL
953
2990-00-411-2479INTERCHANGEABLE
MUFFLER,EXHAUST
1883
2530-00-470-6403INTERCHANGEABLE
WHEEL ASSEMBLY,PNEUMATIC TIRE
MP00214
5340-00-497-5394INTERCHANGEABLE
HANGER,PIPE
BH502
5120-00-595-8423INTERCHANGEABLE
PULLER ATTACHMENT,MECHANICAL
5975-00-642-8502INTERCHANGEABLE
CHASE NIPPLE,CONDUIT
5915-00-752-4458INTERCHANGEABLE
FILTER,BAND PASS
5961-00-755-4349INTERCHANGEABLE
TRANSISTOR
5325-00-854-6677INTERCHANGEABLE
EYELET,METALLIC
752732-004
5930-00-881-6314INTERCHANGEABLE
SWITCH,PUSH
953
5963-01-056-3299INTERCHANGEABLE
REGULATOR,CURRENT
953
5895-01-058-0028INTERCHANGEABLE
CONVERTER,SIGNAL DATA
953

Frequently Asked Questions

What is NSN 5945-00-543-9587?

NSN 5945-00-543-9587 is a Relay,electromagnetic, manufactured by Se Relays Llc (magnecraft) Div Se Relays Llc (magnecraft), classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-00-543-9587?

NSN 5945-00-543-9587 has 6 cross-referenced part numbers: 953 (Se Relays Llc (magnecraft) Div Se Relays Llc (magnecraft)), 94AX-4 (Se Relays Llc (magnecraft) Div Se Relays Llc (magnecraft)), W94AX-4 (Se Relays Llc (magnecraft) Div Se Relays Llc (magnecraft)), 625ARX-19 (Se Relays Llc (magnecraft) Div Se Relays Llc (magnecraft)), PC1C115VAC (Se Relays Llc (magnecraft) Div Se Relays Llc (magnecraft)) and 1 more.

What NSN replaces 5945-00-543-9587?

There are 12 known substitutes for 5945-00-543-9587: 5999-00-166-9771, 2990-00-411-2479, 2530-00-470-6403 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 388AJX-27?

Key specifications for 388AJX-27: Mounting Facility Pattern: IN-LINE SINGLE MOUNTING FACILITY; Mounting Facility Type and Quantity: 2 THREADED HOLE(S) SINGLE MOUNTING FACILITY; Winding Quantity: 1; Thread Class: 2B SINGLE MOUNTING FACILITY. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-00-543-9587 still in active supply?

NSN 5945-00-543-9587 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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