PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1688-1Transformer,radio Frequency

Smart Machines, Inc. Dba Barker and Williamson · NSN 5950-00-263-0877 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-263-0877 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-263-0877. Primary manufacturer part number: 1688-1.
Features
  • Transformer,radio Frequency — FSC 5950
  • Turn Quantity: 5-1/2 SINGLE COMPONENT SINGLE PRIMARY
  • Body Width: 6.000 INCHES NOMINAL IN
  • Body Height: 6.094 INCHES NOMINAL IN
  • Body Length: 8.500 INCHES NOMINAL IN
  • Terminal Type and Quantity: 5 BANANA PLUG
  • Coil Form Type: SOLID SINGLE COMPONENT
  • Mounting Method: TERMINAL SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,radio Frequency, cataloged under National Stock Number 5950-00-263-0877, is classified within Federal Supply Class 5950 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Smart Machines, Inc. Dba Barker and Williamson. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-263-0877
Primary Part Number1688-1
Item NameTransformer,radio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerSmart Machines, Inc. Dba Barker and Williamson
StatusACTIVE
Turn Quantity5-1/2 SINGLE COMPONENT SINGLE PRIMARY
Body Width6.000 INCHES NOMINAL IN
Body Height6.094 INCHES NOMINAL IN
Body Length8.500 INCHES NOMINAL IN
Terminal Type and Quantity5 BANANA PLUG
Coil Form TypeSOLID SINGLE COMPONENT
Mounting MethodTERMINAL SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Frequency Rating7.0 MEGAHERTZ MINIMUM AND 9.0 MEGAHERTZ MINIMUM SINGLE COMPONENT
Inclosure TypeOPEN
Turn Quantity10 SINGLE COMPONENT SINGLE SECONDARY
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4730-00-196-2029B687R-156B INTERCHANGEABLE
Nipple,pipe
American Society for Testing and Materials Dba Astm International
5307-01-179-20841688-1 INTERCHANGEABLE
Stud,special
Tate Andale, Llc
3130-01-185-879416881 INTERCHANGEABLE
Cap,pillow Block
Moog Inc. Dba Ampac-Isp Corp
Cross-Reference Index
Part NumberManufacturer
1688-1 Smart Machines, Inc. Dba Barker and Williamson (USA)
1688-1 Barker & Williamson (USA)
252 U S Electronics Co (USA)
Related Parts
4730-00-196-2029INTERCHANGEABLE
NIPPLE,PIPE
B687R-156B
5307-01-179-2084INTERCHANGEABLE
STUD,SPECIAL
1688-1
3130-01-185-8794INTERCHANGEABLE
CAP,PILLOW BLOCK
16881

Frequently Asked Questions

What is NSN 5950-00-263-0877?

NSN 5950-00-263-0877 is a Transformer,radio Frequency, manufactured by Smart Machines, Inc. Dba Barker and Williamson, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-263-0877?

NSN 5950-00-263-0877 has 3 cross-referenced part numbers: 1688-1 (Smart Machines, Inc. Dba Barker and Williamson), 1688-1 (Barker & Williamson), 252 (U S Electronics Co).

What NSN replaces 5950-00-263-0877?

There are 3 known substitutes for 5950-00-263-0877: 4730-00-196-2029, 5307-01-179-2084, 3130-01-185-8794. Verify interchangeability with system specifications before substitution.

What are the specifications of 1688-1?

Key specifications for 1688-1: Turn Quantity: 5-1/2 SINGLE COMPONENT SINGLE PRIMARY; Body Width: 6.000 INCHES NOMINAL IN; Body Height: 6.094 INCHES NOMINAL IN; Body Length: 8.500 INCHES NOMINAL IN. 12 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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