PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25600Coil,telephone

Freed Transformer Co · NSN 5950-00-645-8753 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-645-8753 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-645-8753. Primary manufacturer part number: 25600.
Features
  • Coil,telephone — FSC 5950
  • Body Height: 3.000 INCHES NOMINAL IN
  • DC Resistance Rating in Ohms: 5.000 SINGLE COMPONENT SECOND WINDING
  • Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.065 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Body Length: 1.875 INCHES NOMINAL IN
  • Body Width: 1.625 INCHES NOMINAL IN
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.229 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coil,telephone, cataloged under National Stock Number 5950-00-645-8753, 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 Freed Transformer Co. Government technical data includes 12 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-645-8753
Primary Part Number25600
Item NameCoil,telephone
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusACTIVE
Body Height3.000 INCHES NOMINAL IN
DC Resistance Rating in Ohms5.000 SINGLE COMPONENT SECOND WINDING
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Width1.065 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Length1.875 INCHES NOMINAL IN
Body Width1.625 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.229 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Terminal Type and Quantity6 STANDOFF INSULATOR
Mounting Facility Quantity4 SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Inclosure TypeFULLY INCLOSED
Winding Quantity3 SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5133-00-233-6415 INTERCHANGEABLE
Drill,twist
5905-01-045-281925-600 INTERCHANGEABLE
Resistor,fixed,composition
Gc/waldom Inc
5950-01-103-4837668-0261-020 INTERCHANGEABLE
Reactor
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
4730-01-275-421825600-1 INTERCHANGEABLE
Coupling Half,quick Disconnect
Spx Fluid Power
Cross-Reference Index
Part NumberManufacturer
25600 PRIMARY Freed Transformer Co (USA)
Related Parts
5133-00-233-6415INTERCHANGEABLE
DRILL,TWIST
5905-01-045-2819INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
25-600
5950-01-103-4837INTERCHANGEABLE
REACTOR
668-0261-020
4730-01-275-4218INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
25600-1

Frequently Asked Questions

What is NSN 5950-00-645-8753?

NSN 5950-00-645-8753 is a Coil,telephone, manufactured by Freed Transformer Co, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-645-8753?

NSN 5950-00-645-8753 has 1 cross-referenced part number: 25600 (Freed Transformer Co).

What NSN replaces 5950-00-645-8753?

There are 4 known substitutes for 5950-00-645-8753: 5133-00-233-6415, 5905-01-045-2819, 5950-01-103-4837 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25600?

Key specifications for 25600: Body Height: 3.000 INCHES NOMINAL IN; DC Resistance Rating in Ohms: 5.000 SINGLE COMPONENT SECOND WINDING; Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP; Center to Center Distance Between Mounting Facilities Parallel to Width: 1.065 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP 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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