PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

14221Relay,electromagnetic

Meggitt (new Hampshire), Inc · NSN 5945-00-503-8030 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-503-8030 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-503-8030. Primary manufacturer part number: 14221.
Features
  • Relay,electromagnetic — FSC 5945
  • Winding DC Resistance Rating: 450.0 OHMS NOMINAL SINGLE WINDING
  • Nominal Operating Current Rating and Type: 20.0 MILLIAMPERES DC SINGLE WINDING
  • Winding Quantity: 1
  • Main Contact Maximum Voltage Rating in Volts: 28.0 DC
  • Operating Voltage Rating and Type at Specified Temp: 12.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
  • Main Contact Load Current Rating at Maximum Rated Voltage: 3.0 AMPERES DC RESISTIVE LOAD
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-503-8030, 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 Meggitt (new Hampshire), Inc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5945-00-503-8030
Primary Part Number14221
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerMeggitt (new Hampshire), Inc
StatusACTIVE
Winding DC Resistance Rating450.0 OHMS NOMINAL SINGLE WINDING
Nominal Operating Current Rating and Type20.0 MILLIAMPERES DC SINGLE WINDING
Winding Quantity1
Main Contact Maximum Voltage Rating in Volts28.0 DC
Operating Voltage Rating and Type at Specified Temp12.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Main Contact Load Current Rating at Maximum Rated Voltage3.0 AMPERES DC RESISTIVE LOAD
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Center to Center Distance Between Mounting Facilities Parallel to Width0.500 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Mounting Facility Type and Quantity3 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Duty TypeCONTINUOUS
Nominal Thread Size0.112 INCHES SINGLE MOUNTING FACILITY IN
Center to Center Distance Between Mounting Facilities Parallel to the Altitude of an Isosceles Triangle1.000 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Environmental ProtectionHERMETIC
Coil Quantity1
Thread Class2B SINGLE MOUNTING FACILITY
Mounting Facility PatternTRIANGLE SINGLE MOUNTING FACILITY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5305-00-022-4843 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-00-573-123514221 INTERCHANGEABLE
Screw,drive
Brinkley Technology Group Llc Dba Hercules Manufacturing
5136-00-580-7335310320 INTERCHANGEABLE
Tap,thread Cutting
Stanley Tools Div of Stanley Works
6250-01-236-93364100340-001 INTERCHANGEABLE
Lampholder
Control Products Corporation
3020-01-281-4503107-924-020-421-000 INTERCHANGEABLE
Gear Sector,spur
Emerson Automation Solutions Final Control Us Lp
6240-01-344-9939F40CW/RS/WMP INTERCHANGEABLE
Lamp,fluorescent
General Electric Company Dba Ge
1095-01-571-271114221 INTERCHANGEABLE
Holster,pistol
Bianchi International Dba Bae Systems Products Group
Cross-Reference Index
Part NumberManufacturer
14221 PRIMARY Meggitt (new Hampshire), Inc (USA)
Related Parts
5305-00-022-4843INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-00-573-1235INTERCHANGEABLE
SCREW,DRIVE
14221
5136-00-580-7335INTERCHANGEABLE
TAP,THREAD CUTTING
310320
6250-01-236-9336INTERCHANGEABLE
LAMPHOLDER
4100340-001
3020-01-281-4503INTERCHANGEABLE
GEAR SECTOR,SPUR
107-924-020-421-000
6240-01-344-9939INTERCHANGEABLE
LAMP,FLUORESCENT
F40CW/RS/WMP
1095-01-571-2711INTERCHANGEABLE
HOLSTER,PISTOL
14221

Frequently Asked Questions

What is NSN 5945-00-503-8030?

NSN 5945-00-503-8030 is a Relay,electromagnetic, manufactured by Meggitt (new Hampshire), Inc, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-503-8030?

NSN 5945-00-503-8030 has 1 cross-referenced part number: 14221 (Meggitt (new Hampshire), Inc).

What NSN replaces 5945-00-503-8030?

There are 7 known substitutes for 5945-00-503-8030: 5305-00-022-4843, 5305-00-573-1235, 5136-00-580-7335 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 14221?

Key specifications for 14221: Winding DC Resistance Rating: 450.0 OHMS NOMINAL SINGLE WINDING; Nominal Operating Current Rating and Type: 20.0 MILLIAMPERES DC SINGLE WINDING; Winding Quantity: 1; Main Contact Maximum Voltage Rating in Volts: 28.0 DC. 19 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