PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21004Semiconductor Device,diode

Biotek Instruments, Inc. Dba Biotek Div Bio-Tek Instruments Llc Dba Biotek Instruments Inc. · NSN 5961-01-368-7173 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-368-7173 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-368-7173. Primary manufacturer part number: 21004.
Features
  • Semiconductor Device,diode — FSC 5961
  • Purchase Description Identification: 56198-21004
  • Criticality Code Justification: FEAT
  • 1 verified cross-reference
  • Primary manufacturer: Biotek Instruments, Inc. Dba Biotek Div Bio-Tek Instruments Llc Dba Biotek Instruments Inc.
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
General Description

The Semiconductor Device,diode, cataloged under National Stock Number 5961-01-368-7173, 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 Biotek Instruments, Inc. Dba Biotek Div Bio-Tek Instruments Llc Dba Biotek Instruments Inc.. Government technical data includes 2 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.

Technical Specifications
ParameterValue
NSN5961-01-368-7173
Primary Part Number21004
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerBiotek Instruments, Inc. Dba Biotek Div Bio-Tek Instruments Llc Dba Biotek Instruments Inc.
StatusACTIVE
Purchase Description Identification56198-21004
Criticality Code JustificationFEAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-061-8540 INTERCHANGEABLE
Hammer,hand
6250-00-196-8830 INTERCHANGEABLE
Lampholder
5120-00-222-455621004 INTERCHANGEABLE
Tool,wedge,terminal
Abb Installation Products Inc
5325-00-276-420537285 INTERCHANGEABLE
Grommet,nonmetallic
Raytheon Company Dba Raytheon
4730-00-287-0289 INTERCHANGEABLE
Nut,tube Coupling
5325-00-290-4473 INTERCHANGEABLE
Insert,screw Thread
2990-00-753-84202199800 INTERCHANGEABLE
Muffler,exhaust
General Motors Llc Dba General Motors Llc
5961-00-938-1135 INTERCHANGEABLE
Semiconductor Device,diode
5940-00-983-6082 INTERCHANGEABLE
Terminal Board
5365-01-111-8296 INTERCHANGEABLE
Ring,mounting,blowe
Cross-Reference Index
Part NumberManufacturer
21004 PRIMARY Biotek Instruments, Inc. Dba Biotek Div Bio-Tek Instruments Llc Dba Biotek Instruments Inc. (USA)
Related Parts
5120-00-061-8540INTERCHANGEABLE
HAMMER,HAND
6250-00-196-8830INTERCHANGEABLE
LAMPHOLDER
5120-00-222-4556INTERCHANGEABLE
TOOL,WEDGE,TERMINAL
21004
5325-00-276-4205INTERCHANGEABLE
GROMMET,NONMETALLIC
37285
4730-00-287-0289INTERCHANGEABLE
NUT,TUBE COUPLING
5325-00-290-4473INTERCHANGEABLE
INSERT,SCREW THREAD
2990-00-753-8420INTERCHANGEABLE
MUFFLER,EXHAUST
2199800
5961-00-938-1135INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5940-00-983-6082INTERCHANGEABLE
TERMINAL BOARD
5365-01-111-8296INTERCHANGEABLE
RING,MOUNTING,BLOWE
6150-01-322-1167INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
5266521
5935-01-533-1910INTERCHANGEABLE
JACKSCREW,ELECTRICAL CONNECTOR
21004

Frequently Asked Questions

What is NSN 5961-01-368-7173?

NSN 5961-01-368-7173 is a Semiconductor Device,diode, manufactured by Biotek Instruments, Inc. Dba Biotek Div Bio-Tek Instruments Llc Dba Biotek Instruments Inc., classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-368-7173?

NSN 5961-01-368-7173 has 1 cross-referenced part number: 21004 (Biotek Instruments, Inc. Dba Biotek Div Bio-Tek Instruments Llc Dba Biotek Instruments Inc.).

What NSN replaces 5961-01-368-7173?

There are 12 known substitutes for 5961-01-368-7173: 5120-00-061-8540, 6250-00-196-8830, 5120-00-222-4556 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21004?

Key specifications for 21004: Purchase Description Identification: 56198-21004; End Item Identification: 6515-01-049-9449; Special Features: FOR USE ON ECG SIMULATOR; MDL ECG-1; Criticality Code Justification: FEAT. 4 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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