PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MM550H/883CSemiconductor Devices,unitized

National Semiconductor Corporation · NSN 5961-01-017-0320 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-017-0320 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-017-0320. Primary manufacturer part number: MM550H/883C.
Features
  • Semiconductor Devices,unitized — FSC 5961
  • Terminal Type and Quantity: 10 UNINSULATED WIRE LEAD
  • Terminal Length: 0.500 INCHES MINIMUM IN
  • Mounting Method: TERMINAL
  • Terminal Circle Diameter: 0.230 INCHES NOMINAL IN
  • Overall Diameter: 0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
  • Component Name and Quantity: 4 TRANSISTOR
  • Maximum Operating Temp Per Measurement Point: 70.0 CELSIUS AMBIENT AIR DEGC
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Semiconductor Devices,unitized, cataloged under National Stock Number 5961-01-017-0320, 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 National Semiconductor Corporation. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-017-0320
Primary Part NumberMM550H/883C
Item NameSemiconductor Devices,unitized
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerNational Semiconductor Corporation
StatusACTIVE
Terminal Type and Quantity10 UNINSULATED WIRE LEAD
Terminal Length0.500 INCHES MINIMUM IN
Mounting MethodTERMINAL
Terminal Circle Diameter0.230 INCHES NOMINAL IN
Overall Diameter0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
Component Name and Quantity4 TRANSISTOR
Maximum Operating Temp Per Measurement Point70.0 CELSIUS AMBIENT AIR DEGC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3120-00-782-7198149003 INTERCHANGEABLE
Bearing,washer,thrust
Curtiss-Wright Controls, Inc. Div Actuation Division
5935-00-787-8969 INTERCHANGEABLE
Plug,telephone
1660-00-977-6778 INTERCHANGEABLE
Ring,lock
3405-01-287-9059149003 INTERCHANGEABLE
Insert,backup,bands
Continental Machines Inc
Cross-Reference Index
Part NumberManufacturer
149003 Northrop Grumman Systems Corporation (USA)
MM550H/883C PRIMARY National Semiconductor Corporation (USA)
Related Parts
3120-00-782-7198INTERCHANGEABLE
BEARING,WASHER,THRUST
149003
5935-00-787-8969INTERCHANGEABLE
PLUG,TELEPHONE
1660-00-977-6778INTERCHANGEABLE
RING,LOCK
3405-01-287-9059INTERCHANGEABLE
INSERT,BACKUP,BANDS
149003

Frequently Asked Questions

What is NSN 5961-01-017-0320?

NSN 5961-01-017-0320 is a Semiconductor Devices,unitized, manufactured by National Semiconductor Corporation, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-017-0320?

NSN 5961-01-017-0320 has 2 cross-referenced part numbers: 149003 (Northrop Grumman Systems Corporation), MM550H/883C (National Semiconductor Corporation).

What NSN replaces 5961-01-017-0320?

There are 4 known substitutes for 5961-01-017-0320: 3120-00-782-7198, 5935-00-787-8969, 1660-00-977-6778 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MM550H/883C?

Key specifications for MM550H/883C: Terminal Type and Quantity: 10 UNINSULATED WIRE LEAD; Terminal Length: 0.500 INCHES MINIMUM IN; Mounting Method: TERMINAL; Terminal Circle Diameter: 0.230 INCHES NOMINAL IN. 8 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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