PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-144Contact,electrical

Eaton Corp Opns & Technical Center · NSN 5999-00-366-7695 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-366-7695 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-366-7695. Primary manufacturer part number: 21-144.
Features
  • Contact,electrical — FSC 5999
  • Voltage Rating in Volts: 230.0 DC
  • Mounting Method: UNTHREADED HOLE(S)
  • Mounting Facility Quantity: 1
  • Current Rating in Amps: 50.0
  • Unthreaded Mounting Hole Diameter: 0.172 INCHES NOMINAL IN
  • Point Height: 0.021 INCHES NOMINAL IN
  • Precious Material and Weight: 0.100 SILVER GRAINS, TROY
Applications
  • Applications requiring Silver Contact construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-00-366-7695, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Eaton Corp Opns & Technical Center. Government technical data includes 26 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-366-7695
Primary Part Number21-144
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerEaton Corp Opns & Technical Center
StatusACTIVE
Voltage Rating in Volts230.0 DC
Mounting MethodUNTHREADED HOLE(S)
Mounting Facility Quantity1
Current Rating in Amps50.0
Unthreaded Mounting Hole Diameter0.172 INCHES NOMINAL IN
Point Height0.021 INCHES NOMINAL IN
Precious Material and Weight0.100 SILVER GRAINS, TROY
Precious Material and LocationBODY AND CONTACT SURFACE SILVER
Surface TreatmentSILVER CONTACT
Precious MaterialSILVER
Style DesignatorFLAT LEAF CONTACT W/ ROUND FLATTED FIXED POINT
MaterialSILVER CONTACT
Point Diameter0.045 INCHES NOMINAL IN
Voltage Rating in Volts230.0 DC
Mounting MethodUNTHREADED HOLE(S)
Mounting Facility Quantity1
Current Rating in Amps50.0
Unthreaded Mounting Hole Diameter0.172 INCHES NOMINAL IN
Point Height0.021 INCHES NOMINAL IN
Precious Material and Weight0.100 SILVER GRAINS, TROY
Precious Material and LocationBODY AND CONTACT SURFACE SILVER
Surface TreatmentSILVER CONTACT
Precious MaterialSILVER
Style DesignatorFLAT LEAF CONTACT W/ ROUND FLATTED FIXED POINT
MaterialSILVER CONTACT
Point Diameter0.045 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Weight0.0100 lbs
Cube0.0004 cu ft
Verified Substitutes 12
5895-00-736-8814A026321 SUCCESSOR
Fan
Rotron Incorporated
Panel,indicator
3805-00-163-243121144 INTERCHANGEABLE
Seal Assembly,oil
Dressta North America Ltd
5305-00-189-894621144 INTERCHANGEABLE
Screw,machine
Eaton Corporation Div Eaton Fluid Power
5360-00-513-1306A21144 INTERCHANGEABLE
Spring,helical,compression
Aerocontrolex Group, Inc. Dba Aero Fluid Products
6520-00-536-435021144 INTERCHANGEABLE
Excavator,dental
Hu-Friedy Mfg. Co., Llc
5330-00-584-0159 INTERCHANGEABLE
Seal,plain Encased
5210-00-884-484021144 INTERCHANGEABLE
Gage Stick,petroleum
U S Army Tank Automotive Command Amsta-Im-Mm
5305-01-069-5109 INTERCHANGEABLE
Screw
1560-01-181-422721144 INTERCHANGEABLE
End Assembly
Triumph Controls, Llc Dba Triumph Controls, Llc
Cross-Reference Index
Part NumberManufacturer
21-144 PRIMARY Eaton Corp Opns & Technical Center (USA)
Related Parts
5895-00-736-8814SUCCESSOR
FAN
A026321
5895-01-184-9975SUCCESSOR
PANEL,INDICATOR
3805-00-163-2431INTERCHANGEABLE
SEAL ASSEMBLY,OIL
21144
5305-00-189-8946INTERCHANGEABLE
SCREW,MACHINE
21144
5360-00-513-1306INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
A21144
6520-00-536-4350INTERCHANGEABLE
EXCAVATOR,DENTAL
21144
5330-00-584-0159INTERCHANGEABLE
SEAL,PLAIN ENCASED
5210-00-884-4840INTERCHANGEABLE
GAGE STICK,PETROLEUM
21144
5305-01-069-5109INTERCHANGEABLE
SCREW
1560-01-181-4227INTERCHANGEABLE
END ASSEMBLY
21144
7035-01-209-0031INTERCHANGEABLE
CLEANING KIT,AUTOMATIC DATA PROC
87087
3020-01-210-1331INTERCHANGEABLE
PULLEY,GROOVE

Frequently Asked Questions

What is NSN 5999-00-366-7695?

NSN 5999-00-366-7695 is a Contact,electrical, manufactured by Eaton Corp Opns & Technical Center, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-366-7695?

NSN 5999-00-366-7695 has 1 cross-referenced part number: 21-144 (Eaton Corp Opns & Technical Center).

What NSN replaces 5999-00-366-7695?

There are 12 known substitutes for 5999-00-366-7695: 5895-00-736-8814, 5895-01-184-9975, 3805-00-163-2431 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21-144?

Key specifications for 21-144: Voltage Rating in Volts: 230.0 DC; Mounting Method: UNTHREADED HOLE(S); Mounting Facility Quantity: 1; Current Rating in Amps: 50.0. 30 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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