PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

479-0021-001Semiconductor Device,diode

The Boeing Company Div Legacy Boeing Hb1 · NSN 5961-00-988-3993 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-988-3993 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-988-3993. Primary manufacturer part number: 479-0021-001.
Features
  • Semiconductor Device,diode — FSC 5961
  • Material: GLASS OR PLASTIC ENCLOSURE
  • Material: SILICON SEMICONDUCTOR
  • Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD
  • Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC
  • Mounting Method: TERMINAL
  • Terminal Length: 1.000 INCHES MINIMUM IN
  • Features Provided: HERMETICALLY SEALED CASE
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
  • Applications requiring Glass or Plastic Enclosure construction
General Description

The Semiconductor Device,diode, cataloged under National Stock Number 5961-00-988-3993, is classified within Federal Supply Class 5961 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is The Boeing Company Div Legacy Boeing Hb1. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-988-3993
Primary Part Number479-0021-001
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerThe Boeing Company Div Legacy Boeing Hb1
StatusACTIVE
MaterialGLASS OR PLASTIC ENCLOSURE
MaterialSILICON SEMICONDUCTOR
Terminal Type and Quantity2 UNINSULATED WIRE LEAD
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Mounting MethodTERMINAL
Terminal Length1.000 INCHES MINIMUM IN
Features ProvidedHERMETICALLY SEALED CASE
Power Rating Per Characteristic200.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
Voltage Rating in Volts Per Characteristic6.2 NOMINAL NOMINAL REGULATOR VOLTAGE
Overall Diameter0.125 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6350-00-076-3315 INTERCHANGEABLE
Buzzer
5110-00-224-9926PD5110-00-224-9926 INTERCHANGEABLE
Scraper,ship
General Services Administration Federal Supply Service
5935-00-665-7267 INTERCHANGEABLE
Connector,plug,electrical
6625-01-022-5282341A INTERCHANGEABLE
Calibrator,voltmeter
Fluke Corp
5220-01-311-3208341-A INTERCHANGEABLE
Gage,comparator,air
Fischer George Foundry Systems Inc P O Box 1607 Seminole Ok 74818-1607
4910-01-438-8982341A INTERCHANGEABLE
Pilot,valve Seat Refacing
Humphrey Products Co
Cross-Reference Index
Part NumberManufacturer
341A Telcom Semiconductor Inc (USA)
5961PL1188599 Jednolity Indeks Materialowy - Uniform Material Index (POL)
341A Gilbert Engineering Co Inc/incon Sub of Transitron Electronic Corp (USA)
479-0021-001 PRIMARY The Boeing Company Div Legacy Boeing Hb1 (USA)
SV425A Gilbert Engineering Co Inc/incon Sub of Transitron Electronic Corp (USA)
Related Parts
6350-00-076-3315INTERCHANGEABLE
BUZZER
5110-00-224-9926INTERCHANGEABLE
SCRAPER,SHIP
PD5110-00-224-9926
5935-00-665-7267INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
6625-01-022-5282INTERCHANGEABLE
CALIBRATOR,VOLTMETER
341A
5220-01-311-3208INTERCHANGEABLE
GAGE,COMPARATOR,AIR
341-A
4910-01-438-8982INTERCHANGEABLE
PILOT,VALVE SEAT REFACING
341A

Frequently Asked Questions

What is NSN 5961-00-988-3993?

NSN 5961-00-988-3993 is a Semiconductor Device,diode, manufactured by The Boeing Company Div Legacy Boeing Hb1, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-988-3993?

NSN 5961-00-988-3993 has 5 cross-referenced part numbers: 341A (Telcom Semiconductor Inc), 5961PL1188599 (Jednolity Indeks Materialowy - Uniform Material Index), 341A (Gilbert Engineering Co Inc/incon Sub of Transitron Electronic Corp), 479-0021-001 (The Boeing Company Div Legacy Boeing Hb1), SV425A (Gilbert Engineering Co Inc/incon Sub of Transitron Electronic Corp).

What NSN replaces 5961-00-988-3993?

There are 6 known substitutes for 5961-00-988-3993: 6350-00-076-3315, 5110-00-224-9926, 5935-00-665-7267 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 479-0021-001?

Key specifications for 479-0021-001: Material: GLASS OR PLASTIC ENCLOSURE; Material: SILICON SEMICONDUCTOR; Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD; Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC. 11 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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