The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-645-4810, 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 20 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5950-00-645-4810 |
| Primary Part Number | 25371 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — No Item Name Available |
| Manufacturer | Freed Transformer Co |
| Status | CANCELLED |
| Reliability Indicator | NOT ESTABLISHED |
| Impedance Rating in Ohms | 4.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Inclosure Type | FULLY INCLOSED |
| Impedance Rating in Ohms | 4.0 NOMINAL AND 60.0 NOMINAL AND 5000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Nominal Thread Size | 0.138 INCHES SINGLE GROUP IN |
| Terminal Type and Quantity | 6 TAB, SOLDER LUG |
| Winding Shielding Method | INTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT |
| Body Width | 1.625 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 1.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Body Height | 2.375 INCHES NOMINAL IN |
| Body Length | 1.625 INCHES NOMINAL IN |
| Maximum Transformer Power Rating | 4.0 WATTS SINGLE COMPONENT |
| Frequency Rating | 200.0 HERTZ MINIMUM AND 2.0 KILOHERTZ MAXIMUM SINGLE COMPONENT |
| Mounting Facility Quantity | 4 SINGLE GROUP |
| Thread Quantity Per Inch | 32 SINGLE GROUP |
| Primary to Secondary Turn Ratio | 1 TO 35-4/10 SINGLE COMPONENT |
| Mounting Method | THREADED HOLE(S) SINGLE GROUP |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 5950-00-645-4810 is a Transformer,audio Frequency, manufactured by Freed Transformer Co, classified under FSC 5950 (No Item Name Available). Status: cancelled.
NSN 5950-00-645-4810 has 3 cross-referenced part numbers: 25371 (Freed Transformer Co), 900109 (Naval Ship Systems Command), NT8174 (Bogen Communications Inc).
There are 8 known substitutes for 5950-00-645-4810: 5910-00-196-2502, 3455-00-596-5169, 5365-01-013-8121 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 25371: Reliability Indicator: NOT ESTABLISHED; Impedance Rating in Ohms: 4.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP; Center to Center Distance Between Mounting Facilities Parallel to Width: 1.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN. 20 total characteristics are documented in the Federal Logistics Information System.
NSN 5950-00-645-4810 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.