PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40251Transistor

Emcore Corporation Div Concord Division · NSN 5961-00-931-8237 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-931-8237 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-931-8237. Primary manufacturer part number: 40251.
Features
  • Transistor — FSC 5961
  • 3 verified cross-references
  • Primary manufacturer: Emcore Corporation Div Concord Division
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-931-8237, 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 Emcore Corporation Div Concord Division. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameTransistor
FSC / FSG5961 — No Item Name Available (FSG 59)
ManufacturersEmcore Corporation Div Concord Division (CAGE 06811); E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales (CAGE A00AM)
Technical Specifications
ParameterValue
NSN5961-00-931-8237
Primary Part Number40251
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerEmcore Corporation Div Concord Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5940-00-211-5579 INTERCHANGEABLE
Terminal,stud
5995-00-212-194140251 INTERCHANGEABLE
Cable Assembly,radio Frequency
Alliant Techsystems Operations Llc Div Defense Electronic Systems
6105-00-229-0504 INTERCHANGEABLE
Motor,direct Current
5975-00-280-95214-0251 INTERCHANGEABLE
Nut,coupling,electrical Conduit
Breeze-Eastern Llc
4920-00-626-591640-251 INTERCHANGEABLE
Hytrol Test Unit
Hydro-Aire Aerospace Corp
5961-00-758-5816 INTERCHANGEABLE
Transistor
5342-00-838-8820 INTERCHANGEABLE
Shield
5330-00-862-9288SRCCA1445 INTERCHANGEABLE
Gasket
Stillman Seal Corporation Div Stillman Seal Corperation
5961-00-917-34784811-183012 INTERCHANGEABLE
Transistor
Fluke Corp
6350-00-932-7962613905-1 INTERCHANGEABLE
Datum Box Assy
Naval Air Warfare Center Aircraft Division Joint Base Jbmdl
Cross-Reference Index
Part NumberManufacturer
Q0166 Emcore Corporation Div Concord Division (USA)
40251 PRIMARY Emcore Corporation Div Concord Division (USA)
5961009318237 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
Related Parts
5940-00-211-5579INTERCHANGEABLE
TERMINAL,STUD
5995-00-212-1941INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
40251
6105-00-229-0504INTERCHANGEABLE
MOTOR,DIRECT CURRENT
5975-00-280-9521INTERCHANGEABLE
NUT,COUPLING,ELECTRICAL CONDUIT
4-0251
4920-00-626-5916INTERCHANGEABLE
HYTROL TEST UNIT
40-251
5961-00-758-5816INTERCHANGEABLE
TRANSISTOR
5342-00-838-8820INTERCHANGEABLE
SHIELD
5330-00-862-9288INTERCHANGEABLE
GASKET
SRCCA1445
5961-00-917-3478INTERCHANGEABLE
TRANSISTOR
4811-183012
6350-00-932-7962INTERCHANGEABLE
DATUM BOX ASSY
613905-1
5961-01-181-3052INTERCHANGEABLE
TRANSISTOR
209285-008
3010-01-313-2912INTERCHANGEABLE
COUPLING,SHAFT,RIGID

Frequently Asked Questions

What is NSN 5961-00-931-8237?

NSN 5961-00-931-8237 is a Transistor, manufactured by Emcore Corporation Div Concord Division, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-931-8237?

NSN 5961-00-931-8237 has 3 cross-referenced part numbers: Q0166 (Emcore Corporation Div Concord Division), 40251 (Emcore Corporation Div Concord Division), 5961009318237 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales).

What NSN replaces 5961-00-931-8237?

There are 12 known substitutes for 5961-00-931-8237: 5940-00-211-5579, 5995-00-212-1941, 6105-00-229-0504 and 9 more. Verify interchangeability with system specifications before substitution.

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