PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1256-1Relay,electromagnetic

Naval Air Warfare Center Aircraft Division Joint Base Jbmdl · NSN 5945-00-511-0340 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-511-0340 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-511-0340. Primary manufacturer part number: 1256-1.
Features
  • Relay,electromagnetic — FSC 5945
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 3.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Duty Type: CONTINUOUS
  • Coil Quantity: 1
  • Mounting Facility Pattern: IN-LINE SINGLE MOUNTING FACILITY
  • Environmental Protection: DUSTPROOF
  • Unthreaded Mounting Hole Diameter: 0.169 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Purpose for Which Designed: GENERAL
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-511-0340, 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 Naval Air Warfare Center Aircraft Division Joint Base Jbmdl. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, 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
NSN5945-00-511-0340
Primary Part Number1256-1
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerNaval Air Warfare Center Aircraft Division Joint Base Jbmdl
StatusACTIVE
Center to Center Distance Between Mounting Facilities Parallel to Length3.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Duty TypeCONTINUOUS
Coil Quantity1
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Environmental ProtectionDUSTPROOF
Unthreaded Mounting Hole Diameter0.169 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Purpose for Which DesignedGENERAL
Terminal Type and Quantity9 PIN ALL FUNCTIONS
Fragility FactorMODERATELY RUGGED
Center to Center Distance Between Mounting Facilities Parallel to Width3.365 INCHES MINIMUM AND 3.385 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN
Winding Quantity1
Mounting Facility Type and Quantity2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Cubic Measure17.688 CUBIC INCHES
Storage TypeGENERAL PURPOSE WAREHOUSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5985-00-060-2043580R064H01 INTERCHANGEABLE
Dummy Load,electrical
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5306-00-167-4840 INTERCHANGEABLE
Bolt,eye
5110-00-203-4936 INTERCHANGEABLE
File,hand
5950-00-421-9286PS76264-1 INTERCHANGEABLE
Reactor
Rockwell Collins, Inc. Dba Rc Displays Systems
5950-00-567-447612561 INTERCHANGEABLE
Reactor
Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems
5120-00-632-973112561 INTERCHANGEABLE
Wrench,compressor N
Stanley Industrial & Automotive Llc
5120-00-869-6987 INTERCHANGEABLE
Bit,male Contact Re
5306-01-074-6817CL-25-EB INTERCHANGEABLE
Bolt,eye
Carr Lane Manufacturing Co
1377-01-102-89631256-1 INTERCHANGEABLE
Initiator,propellant Actuated
Rockwell Collins Inc
6140-01-225-5935PS-670 INTERCHANGEABLE
Battery,storage
Power-Sonic Corporation
Cross-Reference Index
Part NumberManufacturer
EB17A1 Honeywell Intl Inc Defense Avionics Systems (USA)
EB1 Honeywell Intl Inc Defense Avionics Systems (USA)
EB10 Honeywell Intl Inc Defense Avionics Systems (USA)
ER17A1 Honeywell Intl Inc Defense Avionics Systems (USA)
1256-1 PRIMARY Naval Air Warfare Center Aircraft Division Joint Base Jbmdl (USA)
Related Parts
5985-00-060-2043INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
580R064H01
5306-00-167-4840INTERCHANGEABLE
BOLT,EYE
5110-00-203-4936INTERCHANGEABLE
FILE,HAND
5950-00-421-9286INTERCHANGEABLE
REACTOR
PS76264-1
5950-00-567-4476INTERCHANGEABLE
REACTOR
12561
5120-00-632-9731INTERCHANGEABLE
WRENCH,COMPRESSOR N
12561
5120-00-869-6987INTERCHANGEABLE
BIT,MALE CONTACT RE
5306-01-074-6817INTERCHANGEABLE
BOLT,EYE
CL-25-EB
1377-01-102-8963INTERCHANGEABLE
INITIATOR,PROPELLANT ACTUATED
1256-1
6140-01-225-5935INTERCHANGEABLE
BATTERY,STORAGE
PS-670
9540-01-266-5086INTERCHANGEABLE
BEAM,STRUCTURAL
H-T006-B
5340-01-349-3176INTERCHANGEABLE
COVER,ACCESS
12561

Frequently Asked Questions

What is NSN 5945-00-511-0340?

NSN 5945-00-511-0340 is a Relay,electromagnetic, manufactured by Naval Air Warfare Center Aircraft Division Joint Base Jbmdl, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-511-0340?

NSN 5945-00-511-0340 has 5 cross-referenced part numbers: EB17A1 (Honeywell Intl Inc Defense Avionics Systems), EB1 (Honeywell Intl Inc Defense Avionics Systems), EB10 (Honeywell Intl Inc Defense Avionics Systems), ER17A1 (Honeywell Intl Inc Defense Avionics Systems), 1256-1 (Naval Air Warfare Center Aircraft Division Joint Base Jbmdl).

What NSN replaces 5945-00-511-0340?

There are 12 known substitutes for 5945-00-511-0340: 5985-00-060-2043, 5306-00-167-4840, 5110-00-203-4936 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1256-1?

Key specifications for 1256-1: Overall Width: 2.886 INCHES MINIMUM AND 2.906 INCHES MAXIMUM IN; Center to Center Distance Between Mounting Facilities Parallel to Length: 3.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Duty Type: CONTINUOUS; Coil Quantity: 1. 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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