PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

200-201Relay,electromagnetic

Computer Components, Inc Dba Relays Unlimited · NSN 5945-00-682-0645 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-682-0645 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-682-0645. Primary manufacturer part number: 200-201.
Features
  • Relay,electromagnetic — FSC 5945
  • Environmental Protection: DUSTPROOF
  • Winding Quantity: 1
  • Nonpile-Up Main Contact Arrangement: 1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
  • Coil Quantity: 1
  • Nominal Thread Size: 0.112 INCHES SINGLE MOUNTING FACILITY IN
  • Mounting Facility Type and Quantity: 2 THREADED STUD(S) SINGLE MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-682-0645, 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 Computer Components, Inc Dba Relays Unlimited. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-682-0645
Primary Part Number200-201
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerComputer Components, Inc Dba Relays Unlimited
StatusACTIVE
Environmental ProtectionDUSTPROOF
Winding Quantity1
Nonpile-Up Main Contact Arrangement1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Coil Quantity1
Nominal Thread Size0.112 INCHES SINGLE MOUNTING FACILITY IN
Mounting Facility Type and Quantity2 THREADED STUD(S) SINGLE MOUNTING FACILITY
Duty TypeCONTINUOUS
Thread Class2A SINGLE MOUNTING FACILITY A
Main Contact Maximum Voltage Rating in Volts28.0 DC
Center to Center Distance Between Mounting Facilities Parallel to Length1.200 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Terminal Type and Quantity4 PIN ALL FUNCTIONS
Main Contact Load Current Rating at Maximum Rated Voltage70.0 MILLIAMPERES DC RESISTIVE LOAD
Nominal Operating Current Rating and Type50.0 MILLIAMPERES DC SINGLE WINDING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5961-00-621-7855200260 INTERCHANGEABLE
Semiconductor Devices,unitized
Astronics Test Systems Inc
5920-00-931-62762002-01 INTERCHANGEABLE
Arrester,lightning
Joslyn Corp
6510-01-006-5978 INTERCHANGEABLE
Sponge,surgical
6230-01-536-3984200201 INTERCHANGEABLE
Flashlight
Koehler-Bright Star Llc
6515-01-559-8498200201 INTERCHANGEABLE
Scissors,bandage
Mueller Sports Medicine, Inc
4240-01-668-1243200201 INTERCHANGEABLE
Hose Assembly,air Breathing
Avon Protection Systems Incorporated Dba Avon Protection Systems Inc
1560-01-681-033420020.1 INTERCHANGEABLE
Modification Kit,airframe
Kenjer Industries
Cross-Reference Index
Part NumberManufacturer
200-201 Computer Components, Inc Dba Relays Unlimited (USA)
MRRW1AIAW7637528-1 Struthers-Dunn Inc (USA)
GB258AR0010 Gordos Arkansas Inc (USA)
7637528-1 Lockheed Martin Corp Naval Electronics & Surveillance Systems (USA)
7637528P1 Lockheed Martin Corp Naval Electronics & Surveillance Systems (USA)
GB258AR0010 GREEN Gordos Arkansas Inc (USA)
Related Parts
5961-00-621-7855INTERCHANGEABLE
SEMICONDUCTOR DEVICES,UNITIZED
200260
5920-00-931-6276INTERCHANGEABLE
ARRESTER,LIGHTNING
2002-01
6510-01-006-5978INTERCHANGEABLE
SPONGE,SURGICAL
6230-01-536-3984INTERCHANGEABLE
FLASHLIGHT
200201
6515-01-559-8498INTERCHANGEABLE
SCISSORS,BANDAGE
200201
4240-01-668-1243INTERCHANGEABLE
HOSE ASSEMBLY,AIR BREATHING
200201
1560-01-681-0334INTERCHANGEABLE
MODIFICATION KIT,AIRFRAME
20020.1

Frequently Asked Questions

What is NSN 5945-00-682-0645?

NSN 5945-00-682-0645 is a Relay,electromagnetic, manufactured by Computer Components, Inc Dba Relays Unlimited, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-682-0645?

NSN 5945-00-682-0645 has 6 cross-referenced part numbers: 200-201 (Computer Components, Inc Dba Relays Unlimited), MRRW1AIAW7637528-1 (Struthers-Dunn Inc), GB258AR0010 (Gordos Arkansas Inc), 7637528-1 (Lockheed Martin Corp Naval Electronics & Surveillance Systems), 7637528P1 (Lockheed Martin Corp Naval Electronics & Surveillance Systems) and 1 more.

What NSN replaces 5945-00-682-0645?

There are 7 known substitutes for 5945-00-682-0645: 5961-00-621-7855, 5920-00-931-6276, 6510-01-006-5978 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 200-201?

Key specifications for 200-201: Environmental Protection: DUSTPROOF; Winding Quantity: 1; Nonpile-Up Main Contact Arrangement: 1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY. 18 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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