PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

84903Contact,electrical

Telemechanics Inc · NSN 5999-00-224-5838 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-224-5838 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-224-5838. Primary manufacturer part number: 84903.
Features
  • Contact,electrical — FSC 5999
  • Distance Between Mounting Facility Centers: 0.375 INCHES NOMINAL IN
  • Material: SILVER CONTACT
  • Terminal Type and Quantity: 1 TAB, SOLDER LUG AXIALLY AT ONE END
  • Mounting Method: UNTHREADED HOLE(S)
  • Mounting Facility Quantity: 2
  • Unthreaded Mounting Hole Diameter: 0.193 INCHES NOMINAL IN
  • Distance Between Mounting Facility Centers: 0.375 INCHES NOMINAL IN
Applications
  • Applications requiring Silver Contact construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-00-224-5838, 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 Telemechanics Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5999-00-224-5838
Primary Part Number84903
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerTelemechanics Inc
StatusCANCELLED
Distance Between Mounting Facility Centers0.375 INCHES NOMINAL IN
MaterialSILVER CONTACT
Terminal Type and Quantity1 TAB, SOLDER LUG AXIALLY AT ONE END
Mounting MethodUNTHREADED HOLE(S)
Mounting Facility Quantity2
Unthreaded Mounting Hole Diameter0.193 INCHES NOMINAL IN
Distance Between Mounting Facility Centers0.375 INCHES NOMINAL IN
MaterialSILVER CONTACT
Terminal Type and Quantity1 TAB, SOLDER LUG AXIALLY AT ONE END
Mounting MethodUNTHREADED HOLE(S)
Mounting Facility Quantity2
Unthreaded Mounting Hole Diameter0.193 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5945-00-059-2836636AS 148-1 INTERCHANGEABLE
Relay,electromagnetic
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
5920-00-513-4546342005AL INTERCHANGEABLE
Fuseholder,extractor Post
Littelfuse, Inc.
4810-01-060-43679776129-10 INTERCHANGEABLE
Parts Kit,valve
Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force
Cross-Reference Index
Part NumberManufacturer
84903 American Telephone and Telegraph Co (USA)
84903 At and T Corp (USA)
84903 PRIMARY Telemechanics Inc (USA)
Related Parts
5945-00-059-2836INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
636AS 148-1
5920-00-513-4546INTERCHANGEABLE
FUSEHOLDER,EXTRACTOR POST
342005AL
4810-01-060-4367INTERCHANGEABLE
PARTS KIT,VALVE
9776129-10

Frequently Asked Questions

What is NSN 5999-00-224-5838?

NSN 5999-00-224-5838 is a Contact,electrical, manufactured by Telemechanics Inc, classified under FSC 5999 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5999-00-224-5838?

NSN 5999-00-224-5838 has 3 cross-referenced part numbers: 84903 (American Telephone and Telegraph Co), 84903 (At and T Corp), 84903 (Telemechanics Inc).

What NSN replaces 5999-00-224-5838?

There are 3 known substitutes for 5999-00-224-5838: 5945-00-059-2836, 5920-00-513-4546, 4810-01-060-4367. Verify interchangeability with system specifications before substitution.

What are the specifications of 84903?

Key specifications for 84903: Distance Between Mounting Facility Centers: 0.375 INCHES NOMINAL IN; Material: SILVER CONTACT; Terminal Type and Quantity: 1 TAB, SOLDER LUG AXIALLY AT ONE END; Mounting Method: UNTHREADED HOLE(S). 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-00-224-5838 still in active supply?

NSN 5999-00-224-5838 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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