PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3240Relay,electromagnetic

Micro Computer Consultants Inc Quality Accessories and Instruments Div · NSN 5945-00-665-9891 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-665-9891 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-665-9891. Primary manufacturer part number: 3240.
Features
  • Relay,electromagnetic — FSC 5945
  • Thread Series Designator: UNF SINGLE MOUNTING FACILITY
  • Nominal Thread Size: 0.190 INCHES SINGLE MOUNTING FACILITY IN
  • Main Contact Maximum Voltage Rating in Volts: 30.0 DC
  • Thread Class: 2A SINGLE MOUNTING FACILITY A
  • Duty Type: CONTINUOUS
  • Terminal Type and Quantity: 4 PIN ALL FUNCTIONS
  • Nonpile-Up Main Contact Arrangement: 1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-665-9891, 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 Micro Computer Consultants Inc Quality Accessories and Instruments Div. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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: Active.

Technical Specifications
ParameterValue
NSN5945-00-665-9891
Primary Part Number3240
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerMicro Computer Consultants Inc Quality Accessories and Instruments Div
StatusACTIVE
Thread Series DesignatorUNF SINGLE MOUNTING FACILITY
Nominal Thread Size0.190 INCHES SINGLE MOUNTING FACILITY IN
Main Contact Maximum Voltage Rating in Volts30.0 DC
Thread Class2A SINGLE MOUNTING FACILITY A
Duty TypeCONTINUOUS
Terminal Type and Quantity4 PIN ALL FUNCTIONS
Nonpile-Up Main Contact Arrangement1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Nominal Operating Current Rating and Type50.0 AMPERES DC SINGLE WINDING
Winding DC Resistance Rating1.0 OHMS NOMINAL SINGLE WINDING
Main Contact Load Current Rating at Maximum Rated Voltage75.0 AMPERES DC RESISTIVE LOAD
Overall Diameter1.180 INCHES NOMINAL IN
Operating Voltage Rating and Type at Specified Temp50.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Mounting Facility Type and Quantity1 THREADED STUD(S) SINGLE MOUNTING FACILITY
Winding Quantity1
Coil Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2915-00-119-46653240 INTERCHANGEABLE
Cover,fuel Pump
Triumph Engine Control Systems Llc
4730-00-196-14763240 INTERCHANGEABLE
Nipple,pipe
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
4730-00-200-09123240 INTERCHANGEABLE
Nut,tube Coupling
Brinkley Technology Group Llc Dba Hercules Manufacturing
2530-00-471-82505459221 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
General Motors Llc Dba General Motors Llc
6145-00-493-1539 INTERCHANGEABLE
Cable,special Purpose,electrical
2815-00-517-98353240 INTERCHANGEABLE
Ring,piston
Kaydon Ring & Seal Inc Dba Skf Precision Technologies
5950-00-678-25143240 INTERCHANGEABLE
Transformer,power
Precision Electronics, Inc
1560-00-939-85763240 INTERCHANGEABLE
Seal,shaft
Alternative Surface Grinding Corp.
5915-01-007-7113582R699H01 INTERCHANGEABLE
Filter,band Pass
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5820-01-010-07263240 INTERCHANGEABLE
Resistor Rod-Pad Assembly
Electro-Metrics Corporation Dba Electro-Metrics
Cross-Reference Index
Part NumberManufacturer
3240 PRIMARY Micro Computer Consultants Inc Quality Accessories and Instruments Div (USA)
Related Parts
2915-00-119-4665INTERCHANGEABLE
COVER,FUEL PUMP
3240
4730-00-196-1476INTERCHANGEABLE
NIPPLE,PIPE
3240
4730-00-200-0912INTERCHANGEABLE
NUT,TUBE COUPLING
3240
2530-00-471-8250INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
5459221
6145-00-493-1539INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
2815-00-517-9835INTERCHANGEABLE
RING,PISTON
3240
5950-00-678-2514INTERCHANGEABLE
TRANSFORMER,POWER
3240
1560-00-939-8576INTERCHANGEABLE
SEAL,SHAFT
3240
5915-01-007-7113INTERCHANGEABLE
FILTER,BAND PASS
582R699H01
5820-01-010-0726INTERCHANGEABLE
RESISTOR ROD-PAD ASSEMBLY
3240
5120-01-018-8980INTERCHANGEABLE
BIT,SCREWDRIVER
6680-01-080-0194INTERCHANGEABLE
INDICATOR,LIQUID QUANTITY
3240

Frequently Asked Questions

What is NSN 5945-00-665-9891?

NSN 5945-00-665-9891 is a Relay,electromagnetic, manufactured by Micro Computer Consultants Inc Quality Accessories and Instruments Div, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-665-9891?

NSN 5945-00-665-9891 has 1 cross-referenced part number: 3240 (Micro Computer Consultants Inc Quality Accessories and Instruments Div).

What NSN replaces 5945-00-665-9891?

There are 12 known substitutes for 5945-00-665-9891: 2915-00-119-4665, 4730-00-196-1476, 4730-00-200-0912 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3240?

Key specifications for 3240: Overall Length: 2.500 INCHES NOMINAL IN; Thread Series Designator: UNF SINGLE MOUNTING FACILITY; Nominal Thread Size: 0.190 INCHES SINGLE MOUNTING FACILITY IN; Main Contact Maximum Voltage Rating in Volts: 30.0 DC. 17 total characteristics are documented in the Federal Logistics Information System.

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