PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3028-20/ASwitch,optoelectronic

Bei Precision Systems & Space Company, Inc · NSN 5980-01-420-0650 · FSC 5980 · Light Emitting Diode
Verified by PartsTable
NSN 5980-01-420-0650 — this item is cataloged by the U.S. Government under National Stock Number 5980-01-420-0650. Primary manufacturer part number: 3028-20/A.
Features
  • Switch,optoelectronic — FSC 5980
  • General Characteristics Item Description: ENCODER, OPTICAL
  • 3 verified cross-references
  • Primary manufacturer: Bei Precision Systems & Space Company, Inc
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,optoelectronic, cataloged under National Stock Number 5980-01-420-0650, is classified within Federal Supply Class 5980 (Light Emitting Diode) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Bei Precision Systems & Space Company, Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5980-01-420-0650
Primary Part Number3028-20/A
Item NameSwitch,optoelectronic
FSC / FSG5980 / 59 — Light Emitting Diode
ManufacturerBei Precision Systems & Space Company, Inc
StatusACTIVE
General Characteristics Item DescriptionENCODER, OPTICAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5905-00-111-4743 INTERCHANGEABLE
Resistor,fixed,composition
5905-00-472-6103302-0820-00 INTERCHANGEABLE
Resistor,fixed,composition
Tektronix, Inc.
Cross-Reference Index
Part NumberManufacturer
3028-20/A PRIMARY Bei Precision Systems & Space Company, Inc (USA)
3028-20 Bei Motion Systems Co Itek Encoder Div (USA)
3028-20 Bei Precision Systems & Space Company, Inc (USA)
Related Parts
5905-00-111-4743INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5905-00-472-6103INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
302-0820-00

Frequently Asked Questions

What is NSN 5980-01-420-0650?

NSN 5980-01-420-0650 is a Switch,optoelectronic, manufactured by Bei Precision Systems & Space Company, Inc, classified under FSC 5980 (Light Emitting Diode). Status: active.

What are the part numbers for NSN 5980-01-420-0650?

NSN 5980-01-420-0650 has 3 cross-referenced part numbers: 3028-20/A (Bei Precision Systems & Space Company, Inc), 3028-20 (Bei Motion Systems Co Itek Encoder Div), 3028-20 (Bei Precision Systems & Space Company, Inc).

What NSN replaces 5980-01-420-0650?

There are 2 known substitutes for 5980-01-420-0650: 5905-00-111-4743, 5905-00-472-6103. Verify interchangeability with system specifications before substitution.

What are the specifications of 3028-20/A?

Key specifications for 3028-20/A: General Characteristics Item Description: ENCODER, OPTICAL; End Item Identification: AN/MPS-39. 2 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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