PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B1011Relay,electromagnetic

Lucent Technologies Inc Corporate Headquarters · NSN 5945-00-189-8763 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-189-8763 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-189-8763. Primary manufacturer part number: B1011.
Features
  • Relay,electromagnetic — FSC 5945
  • Winding Quantity: 1
  • Thread Class: 2B SINGLE MOUNTING FACILITY
  • Environmental Protection: DUSTPROOF
  • Duty Type: CONTINUOUS
  • Main Contact Maximum Voltage Rating in Volts: 48.0 DC
  • Nominal Thread Size: 0.138 INCHES SINGLE MOUNTING FACILITY IN
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 0.562 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-189-8763, 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 Lucent Technologies Inc Corporate Headquarters. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-189-8763
Primary Part NumberB1011
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerLucent Technologies Inc Corporate Headquarters
StatusACTIVE
Winding Quantity1
Thread Class2B SINGLE MOUNTING FACILITY
Environmental ProtectionDUSTPROOF
Duty TypeCONTINUOUS
Main Contact Maximum Voltage Rating in Volts48.0 DC
Nominal Thread Size0.138 INCHES SINGLE MOUNTING FACILITY IN
Center to Center Distance Between Mounting Facilities Parallel to Length0.562 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Coil Quantity1
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Mounting Facility Type and Quantity2 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Main Contact Load Current Rating at Maximum Rated Voltage20.0 MILLIAMPERES DC RESISTIVE LOAD
Terminal Type and Quantity4 PIN ALL FUNCTIONS
Nominal Operating Current Rating and Type10.0 MILLIAMPERES DC SINGLE WINDING
Winding DC Resistance Rating1.7 OHMS NOMINAL SINGLE WINDING
Pile-Up Main Contact Form Arrangement1A A
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Operating Voltage Rating and Type at Specified Temp48.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3120-00-287-6301A307-3 INTERCHANGEABLE
Bearing,sleeve
Chrysler Corp Amplex Div
5820-00-911-1609 INTERCHANGEABLE
Module Oscillator
6130-01-082-7819 INTERCHANGEABLE
Power Supply
5998-01-530-4083B1011 INTERCHANGEABLE
Circuit Card Assembly
Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
Cross-Reference Index
Part NumberManufacturer
B1011 At and T Corp (USA)
B1011 American Telephone and Telegraph Co (USA)
B1011 Lucent Technologies Inc Dba Federal Marketing Group (USA)
B1011RELAY American Telephone and Telegraph Co (USA)
B1011 PRIMARY Lucent Technologies Inc Corporate Headquarters (USA)
Related Parts
3120-00-287-6301INTERCHANGEABLE
BEARING,SLEEVE
A307-3
5820-00-911-1609INTERCHANGEABLE
MODULE OSCILLATOR
6130-01-082-7819INTERCHANGEABLE
POWER SUPPLY
5998-01-530-4083INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
B1011

Frequently Asked Questions

What is NSN 5945-00-189-8763?

NSN 5945-00-189-8763 is a Relay,electromagnetic, manufactured by Lucent Technologies Inc Corporate Headquarters, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-189-8763?

NSN 5945-00-189-8763 has 5 cross-referenced part numbers: B1011 (At and T Corp), B1011 (American Telephone and Telegraph Co), B1011 (Lucent Technologies Inc Dba Federal Marketing Group), B1011RELAY (American Telephone and Telegraph Co), B1011 (Lucent Technologies Inc Corporate Headquarters).

What NSN replaces 5945-00-189-8763?

There are 4 known substitutes for 5945-00-189-8763: 3120-00-287-6301, 5820-00-911-1609, 6130-01-082-7819 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B1011?

Key specifications for B1011: Winding Quantity: 1; Thread Class: 2B SINGLE MOUNTING FACILITY; Environmental Protection: DUSTPROOF; Duty Type: CONTINUOUS. 20 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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