PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55A6334CHANGE12ITEM6Relay,electromagnetic

Westinghouse Electric Corp · NSN 5945-00-257-6900 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-257-6900 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-257-6900. Primary manufacturer part number: 55A6334CHANGE12ITEM6.
Features
  • Relay,electromagnetic — FSC 5945
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 0.562 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Mounting Facility Type and Quantity: 4 THREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Mounting Facility Pattern: RECTANGULAR SINGLE MOUNTING FACILITY
  • Main Contact Maximum Voltage Rating in Volts: 115.0 AC
  • Nominal Thread Size: 0.112 INCHES SINGLE MOUNTING FACILITY IN
  • Terminal Type and Quantity: 4 PIN ALL FUNCTIONS
  • Thread Quantity Per Inch: 40 SINGLE MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-257-6900, 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 Westinghouse Electric Corp. 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-257-6900
Primary Part Number55A6334CHANGE12ITEM6
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerWestinghouse Electric Corp
StatusACTIVE
Center to Center Distance Between Mounting Facilities Parallel to Length0.562 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Mounting Facility Type and Quantity4 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Mounting Facility PatternRECTANGULAR SINGLE MOUNTING FACILITY
Main Contact Maximum Voltage Rating in Volts115.0 AC
Nominal Thread Size0.112 INCHES SINGLE MOUNTING FACILITY IN
Terminal Type and Quantity4 PIN ALL FUNCTIONS
Thread Quantity Per Inch40 SINGLE MOUNTING FACILITY
Thread Class2B SINGLE MOUNTING FACILITY
Winding DC Resistance Rating70.0 OHMS NOMINAL SINGLE WINDING
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Coil Quantity1
Operating Voltage Rating and Type at Specified Temp12.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Duty TypeCONTINUOUS
Pile-Up Main Contact Form Arrangement1A A
Center to Center Distance Between Mounting Facilities Parallel to Width0.750 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Winding Quantity1
Main Contact Load Current Rating at Maximum Rated Voltage1.0 AMPERES AC RESISTIVE LOAD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
3110-00-183-5759R455-6 INTERCHANGEABLE
Bearing,ball,annular
Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation
5133-00-236-4043 INTERCHANGEABLE
Drill,twist
2520-00-311-524411509 INTERCHANGEABLE
Eye,bolt,clutch
Sachs-Boge of America
5360-00-316-5519 INTERCHANGEABLE
Spring,limit Switch
5815-00-356-3340SC-B-69640 INTERCHANGEABLE
Bar,selector,teletypewriter
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3830-00-371-61021L INTERCHANGEABLE
Shank-Tooth,surface Ripping
H & L Tooth Company Dba H & L Forge
4320-00-911-225511509 INTERCHANGEABLE
Ring,wearing
Air & Liquid Systems Corporation Dba Buffalo Pumps
4935-00-978-9779 INTERCHANGEABLE
Idler Assembly
5331-01-174-86185740099 INTERCHANGEABLE
O-Ring
Am General Llc
5975-01-176-344711509 INTERCHANGEABLE
Hanger,cable
Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
Cross-Reference Index
Part NumberManufacturer
55A6334CHANGE12ITEM6 PRIMARY Westinghouse Electric Corp (USA)
1150-9 Airpax Corporation Llc Dba Airpax Corporation Llc (USA)
1150-9 Te Connectivity Corporation (USA)
55A6334CHANGE12ITEM6 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
1150-9 Te Connectivity Corporation (USA)
Related Parts
3110-00-183-5759INTERCHANGEABLE
BEARING,BALL,ANNULAR
R455-6
5133-00-236-4043INTERCHANGEABLE
DRILL,TWIST
2520-00-311-5244INTERCHANGEABLE
EYE,BOLT,CLUTCH
11509
5360-00-316-5519INTERCHANGEABLE
SPRING,LIMIT SWITCH
5815-00-356-3340INTERCHANGEABLE
BAR,SELECTOR,TELETYPEWRITER
SC-B-69640
3830-00-371-6102INTERCHANGEABLE
SHANK-TOOTH,SURFACE RIPPING
1L
4320-00-911-2255INTERCHANGEABLE
RING,WEARING
11509
4935-00-978-9779INTERCHANGEABLE
IDLER ASSEMBLY
5331-01-174-8618INTERCHANGEABLE
O-RING
5740099
5975-01-176-3447INTERCHANGEABLE
HANGER,CABLE
11509

Frequently Asked Questions

What is NSN 5945-00-257-6900?

NSN 5945-00-257-6900 is a Relay,electromagnetic, manufactured by Westinghouse Electric Corp, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-257-6900?

NSN 5945-00-257-6900 has 5 cross-referenced part numbers: 55A6334CHANGE12ITEM6 (Westinghouse Electric Corp), 1150-9 (Airpax Corporation Llc Dba Airpax Corporation Llc), 1150-9 (Te Connectivity Corporation), 55A6334CHANGE12ITEM6 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 1150-9 (Te Connectivity Corporation).

What NSN replaces 5945-00-257-6900?

There are 10 known substitutes for 5945-00-257-6900: 3110-00-183-5759, 5133-00-236-4043, 2520-00-311-5244 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 55A6334CHANGE12ITEM6?

Key specifications for 55A6334CHANGE12ITEM6: Center to Center Distance Between Mounting Facilities Parallel to Length: 0.562 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Mounting Facility Type and Quantity: 4 THREADED HOLE(S) SINGLE MOUNTING FACILITY; Mounting Facility Pattern: RECTANGULAR SINGLE MOUNTING FACILITY; Overall Height: 1.370 INCHES NOMINAL IN. 20 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com