PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20-505Relay,electromagnetic

Entron Industries Limited Partnership Dba Entron Industries Property Div · NSN 5945-00-252-5608 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-252-5608 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-252-5608. Primary manufacturer part number: 20-505.
Features
  • Relay,electromagnetic — FSC 5945
  • Thread Quantity Per Inch: 32 SINGLE MOUNTING FACILITY
  • Pile-Up Main Contact Form Arrangement: 1C
  • Duty Type: CONTINUOUS
  • Main Contact Load Current Rating at Maximum Rated Voltage: 3.0 AMPERES AC AND 3.0 AMPERES DC RESISTIVE LOAD
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
  • Coil Quantity: 1
  • Winding DC Resistance Rating: 400.0 OHMS NOMINAL SINGLE WINDING
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-252-5608, 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 Entron Industries Limited Partnership Dba Entron Industries Property Div. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 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
NSN5945-00-252-5608
Primary Part Number20-505
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerEntron Industries Limited Partnership Dba Entron Industries Property Div
StatusACTIVE
Thread Quantity Per Inch32 SINGLE MOUNTING FACILITY
Pile-Up Main Contact Form Arrangement1C
Duty TypeCONTINUOUS
Main Contact Load Current Rating at Maximum Rated Voltage3.0 AMPERES AC AND 3.0 AMPERES DC RESISTIVE LOAD
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Coil Quantity1
Winding DC Resistance Rating400.0 OHMS NOMINAL SINGLE WINDING
Terminal Type and Quantity5 PIN ALL FUNCTIONS
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Center to Center Distance Between Mounting Facilities Parallel to Length0.750 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Winding Quantity1
Thread Class2B SINGLE MOUNTING FACILITY
Main Contact Maximum Voltage Rating in Volts110.0 AC AND 28.0 DC
Mounting Facility Type and Quantity2 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Nominal Thread Size0.164 INCHES SINGLE MOUNTING FACILITY IN
Operating Voltage Rating and Type at Specified Temp50.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3020-00-065-856520505 INTERCHANGEABLE
Pulley,groove
Eagle Crusher Co Inc Dba Stedman Machine Co
5340-00-139-8245U-533984 INTERCHANGEABLE
Crank,hand
Triumph Thermal Systems, Llc
5330-00-172-20281255PC74085B INTERCHANGEABLE
Gasket
Brinkley Technology Group Llc Dba Hercules Manufacturing
4420-00-468-0140 INTERCHANGEABLE
Plate,cover
5975-00-472-5124TC726A INTERCHANGEABLE
Box Connector,electrical
Abb Installation Products Inc
6660-00-628-0557 INTERCHANGEABLE
Eccentric
1650-00-692-356620505 INTERCHANGEABLE
Head,linear Actuating Cylinder
Parker-Hannifin Corporation Dba Control Systems Division
4720-00-733-977920505 INTERCHANGEABLE
Hose,preformed
Gates Corporation
6515-00-912-825811-394-97F INTERCHANGEABLE
Gloves,surgeons'
Fisher Scientific Co
5307-01-201-209620505 INTERCHANGEABLE
Stud,plain
Northrop Grumman Systems Corporation Div Marine Systems
Cross-Reference Index
Part NumberManufacturer
20-505 Entron Industries Limited Partnership Dba Entron Industries Property Div (USA)
H77155-2 Gte Communication Systems Corp (USA)
Related Parts
3020-00-065-8565INTERCHANGEABLE
PULLEY,GROOVE
20505
5340-00-139-8245INTERCHANGEABLE
CRANK,HAND
U-533984
5330-00-172-2028INTERCHANGEABLE
GASKET
1255PC74085B
4420-00-468-0140INTERCHANGEABLE
PLATE,COVER
5975-00-472-5124INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
TC726A
6660-00-628-0557INTERCHANGEABLE
ECCENTRIC
1650-00-692-3566INTERCHANGEABLE
HEAD,LINEAR ACTUATING CYLINDER
20505
4720-00-733-9779INTERCHANGEABLE
HOSE,PREFORMED
20505
6515-00-912-8258INTERCHANGEABLE
GLOVES,SURGEONS'
11-394-97F
5307-01-201-2096INTERCHANGEABLE
STUD,PLAIN
20505
5330-01-286-3047INTERCHANGEABLE
GASKET
5365-01-398-7024INTERCHANGEABLE
RING,EXTERNALLY THREADED
20505

Frequently Asked Questions

What is NSN 5945-00-252-5608?

NSN 5945-00-252-5608 is a Relay,electromagnetic, manufactured by Entron Industries Limited Partnership Dba Entron Industries Property Div, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-252-5608?

NSN 5945-00-252-5608 has 2 cross-referenced part numbers: 20-505 (Entron Industries Limited Partnership Dba Entron Industries Property Div), H77155-2 (Gte Communication Systems Corp).

What NSN replaces 5945-00-252-5608?

There are 12 known substitutes for 5945-00-252-5608: 3020-00-065-8565, 5340-00-139-8245, 5330-00-172-2028 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20-505?

Key specifications for 20-505: Thread Quantity Per Inch: 32 SINGLE MOUNTING FACILITY; Pile-Up Main Contact Form Arrangement: 1C; Overall Height: 1.870 INCHES NOMINAL IN; Duty Type: CONTINUOUS. 19 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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