PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

105221Contact,electrical

Lucent Technologies Inc Corporate Headquarters · NSN 5999-00-193-2815 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-193-2815 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-193-2815. Primary manufacturer part number: 105221.
Features
  • Contact,electrical — FSC 5999
  • Material: TUNGSTEN CONTACT
  • Mounting Method: UNTHREADED HOLE(S)
  • Distance Between Mounting Facility Centers: 0.375 INCHES NOMINAL IN
  • Mounting Facility Quantity: 2
  • Unthreaded Mounting Hole Diameter: 0.193 INCHES NOMINAL IN
  • Terminal Type and Quantity: 1 TAB, SOLDER LUG BACK
  • Material: TUNGSTEN CONTACT
Applications
  • Applications requiring Tungsten Contact construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-00-193-2815, 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 Lucent Technologies Inc Corporate Headquarters. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-193-2815
Primary Part Number105221
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerLucent Technologies Inc Corporate Headquarters
StatusCANCELLED
MaterialTUNGSTEN CONTACT
Mounting MethodUNTHREADED HOLE(S)
Distance Between Mounting Facility Centers0.375 INCHES NOMINAL IN
Mounting Facility Quantity2
Unthreaded Mounting Hole Diameter0.193 INCHES NOMINAL IN
Terminal Type and Quantity1 TAB, SOLDER LUG BACK
MaterialTUNGSTEN CONTACT
Mounting MethodUNTHREADED HOLE(S)
Distance Between Mounting Facility Centers0.375 INCHES NOMINAL IN
Mounting Facility Quantity2
Unthreaded Mounting Hole Diameter0.193 INCHES NOMINAL IN
Terminal Type and Quantity1 TAB, SOLDER LUG BACK
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5998-00-476-1133 (105221)
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeX
Verified Substitutes 7
5998-00-476-1133105221 SUCCESSOR
Printed Wiring Board
The Aeronautical Instrument and Radio Company Dba the Aeronautical Instrument and Radio Company Div the Aeronautical Instrument and
5910-00-103-1700066600414A0 102K INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
Erie Specialty Products Inc
5935-00-201-9490PU116AU INTERCHANGEABLE
Jack,tip
Joint Electronics Type Designation System
4730-00-240-1678 INTERCHANGEABLE
Union,pipe
5365-00-820-7658105221 INTERCHANGEABLE
Ring,externally Threaded
Air Logistics Corporation Dba Air Logistics Corp
5945-00-827-3699IR1215GC24 INTERCHANGEABLE
Relay,electromagnetic
Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co
3020-01-520-7911105221 INTERCHANGEABLE
Pulley,flat
Carl Stahl Sava Industries, Inc.
Cross-Reference Index
Part NumberManufacturer
105221 At and T Corp (USA)
105221 American Telephone and Telegraph Co (USA)
105221 PRIMARY Lucent Technologies Inc Corporate Headquarters (USA)
105221 Lucent Technologies Inc Dba Federal Marketing Group (USA)
Related Parts
SUCCESSOR 5998-00-476-1133 Printed Wiring Board · 105221
5910-00-103-1700INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
066600414A0 102K
5935-00-201-9490INTERCHANGEABLE
JACK,TIP
PU116AU
4730-00-240-1678INTERCHANGEABLE
UNION,PIPE
5365-00-820-7658INTERCHANGEABLE
RING,EXTERNALLY THREADED
105221
5945-00-827-3699INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
IR1215GC24
3020-01-520-7911INTERCHANGEABLE
PULLEY,FLAT
105221

Frequently Asked Questions

What is NSN 5999-00-193-2815?

NSN 5999-00-193-2815 is a Contact,electrical, manufactured by Lucent Technologies Inc Corporate Headquarters, classified under FSC 5999 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5999-00-193-2815?

NSN 5999-00-193-2815 has 4 cross-referenced part numbers: 105221 (At and T Corp), 105221 (American Telephone and Telegraph Co), 105221 (Lucent Technologies Inc Corporate Headquarters), 105221 (Lucent Technologies Inc Dba Federal Marketing Group).

What NSN replaces 5999-00-193-2815?

There are 7 known substitutes for 5999-00-193-2815: 5998-00-476-1133, 5910-00-103-1700, 5935-00-201-9490 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 105221?

Key specifications for 105221: Material: TUNGSTEN CONTACT; Mounting Method: UNTHREADED HOLE(S); Distance Between Mounting Facility Centers: 0.375 INCHES NOMINAL IN; Mounting Facility Quantity: 2. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-00-193-2815 still in active supply?

NSN 5999-00-193-2815 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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