PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MDR-4030Relay,rotary

Te Connectivity Corporation · NSN 5945-00-836-9905 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-836-9905 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-836-9905. Primary manufacturer part number: MDR-4030.
Features
  • Relay,rotary — FSC 5945
  • Contact Current Type: AC AND DC
  • Coil Terminal Quantity: 2
  • Winding Characteristic: SINGLE WOUND UNTAPPED
  • Pull-in Current: 0.67 AMPERES NOMINAL
  • Coil DC Resistance: 68.0 OHMS NOMINAL
  • Section Quantity: 1
  • Rotation Direction for Which Designed: CLOCKWISE
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,rotary, cataloged under National Stock Number 5945-00-836-9905, 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 Te Connectivity Corporation. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 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
NSN5945-00-836-9905
Primary Part NumberMDR-4030
Item NameRelay,rotary
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerTe Connectivity Corporation
StatusACTIVE
Contact Current TypeAC AND DC
Coil Terminal Quantity2
Winding CharacteristicSINGLE WOUND UNTAPPED
Pull-in Current0.67 AMPERES NOMINAL
Coil DC Resistance68.0 OHMS NOMINAL
Section Quantity1
Rotation Direction for Which DesignedCLOCKWISE
Torque Load Rating9.50 INCH-OUNCES IN
Environmental ProtectionDUSTPROOF
Contact Current Rating at Maximum Rated Voltage500.0 MILLIAMPERES RESISTIVE
Contact Maximum Voltage Rating in Volts125.0
Contact Voltage Rating at Maximum Rated Current115.0
Mounting ConfigurationFOUR 0.196 IN. DIA MTG HOLES ON 2-1/4 IN. BY 2-1/4 IN. MTG CENTERS IN
AC Operating Voltage Rating in Volts115.0 NOMINAL
Structural DesignSECTIONAL
Contact Maximum Rated Current5.0 AMPERES RESISTIVE
Coil Winding Quantity1
Operating Current Rating0.150 AMPERES NOMINAL
Contact Terminal Quantity12
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5945-01-051-3905MDR4107 INTERCHANGEABLE
Relay,rotary
Te Connectivity Corporation
5945-01-185-5951106.416-5 INTERCHANGEABLE
Relay,rotary
Ward Leonard Ct Llc
5945-01-245-3053 INTERCHANGEABLE
Relay,rotary
5945-01-443-2469 INTERCHANGEABLE
Relay,rotary
Cross-Reference Index
Part NumberManufacturer
MDR-4030 PRIMARY Te Connectivity Corporation (USA)
6956ED518 PC2 Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA)
5945PL0883469 Jednolity Indeks Materialowy - Uniform Material Index (POL)
MDR131-1 Te Connectivity Corporation (USA)
2122403 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
10-5316-2 Te Connectivity Corporation (USA)
10-5316-2 Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA)
Related Parts
5945-01-051-3905INTERCHANGEABLE
RELAY,ROTARY
MDR4107
5945-01-185-5951INTERCHANGEABLE
RELAY,ROTARY
106.416-5
5945-01-245-3053INTERCHANGEABLE
RELAY,ROTARY
5945-01-443-2469INTERCHANGEABLE
RELAY,ROTARY

Frequently Asked Questions

What is NSN 5945-00-836-9905?

NSN 5945-00-836-9905 is a Relay,rotary, manufactured by Te Connectivity Corporation, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-836-9905?

NSN 5945-00-836-9905 has 7 cross-referenced part numbers: MDR-4030 (Te Connectivity Corporation), 6956ED518 PC2 (Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc), 5945PL0883469 (Jednolity Indeks Materialowy - Uniform Material Index), MDR131-1 (Te Connectivity Corporation), 2122403 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier) and 2 more.

What NSN replaces 5945-00-836-9905?

There are 4 known substitutes for 5945-00-836-9905: 5945-01-051-3905, 5945-01-185-5951, 5945-01-245-3053 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MDR-4030?

Key specifications for MDR-4030: Overall Width: 2.844 INCHES NOMINAL IN; Contact Current Type: AC AND DC; Coil Terminal Quantity: 2; Winding Characteristic: SINGLE WOUND UNTAPPED. 22 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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