The Transformer,pulse, cataloged under National Stock Number 5950-01-055-6330, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Keytronics, Inc. Div Api Technologies Corp- Magnetics. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-01-055-6330 |
| Primary Part Number | K5381 |
| Item Name | Transformer,pulse |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Keytronics, Inc. Div Api Technologies Corp- Magnetics |
| Status | ACTIVE |
| Mounting Facility Quantity | 1 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Body Outside Diameter | 1.290 INCHES MINIMUM AND 1.310 INCHES MAXIMUM IN |
| Mounting Method | THREADED HOLE(S) SINGLE GROUP |
| Inductance Rating | 40.00 MILLIHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Winding Function and Quantity | 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 9.0 NOMINAL SINGLE COMPONENT ALL SECONDARY |
| Winding Shielding Method | EXTERNAL INCLOSURE SINGLE COMPONENT |
| Nominal Thread Size | 0.112 INCHES SINGLE GROUP IN |
| Maximum Operating Temp | 110.0 CELSIUS DEGC |
| Body Length | 0.875 INCHES NOMINAL IN |
| DC Resistance Rating in Ohms | 2.000 SINGLE COMPONENT SINGLE PRIMARY |
| DC Resistance Rating in Ohms | 0.200 SINGLE COMPONENT ALL SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 10.0 KILOHERTZ NOMINAL SINGLE COMPONENT |
| Thread Quantity Per Inch | 40 SINGLE GROUP |
| Primary to Secondary Turn Ratio | 4 TO 1 TO 1 SINGLE COMPONENT |
| Terminal Type and Quantity | 6 TURRET |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| K5381 PRIMARY | Keytronics, Inc. Div Api Technologies Corp- Magnetics (USA) |
| Reference | Meaning |
|---|---|
| 584913-1 | 5/9 Secondary reference Raytheon Company Div Corp |
| 806169 | 5/9 Secondary reference Raytheon Company Div Corp |
| 584913-1 | 7/2 Vendor item drawing reference Raytheon Company Dba Raytheon Co |
NSN 5950-01-055-6330 is a Transformer,pulse, manufactured by Keytronics, Inc. Div Api Technologies Corp- Magnetics, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-055-6330 has 1 manufacturer part number on file: K5381 (Keytronics, Inc. Div Api Technologies Corp- Magnetics).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-134-7255. Verify interchangeability with system specifications before substitution.
Key specifications for K5381: Mounting Facility Quantity: 1 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Body Outside Diameter: 1.290 INCHES MINIMUM AND 1.310 INCHES MAXIMUM IN; Mounting Method: THREADED HOLE(S) SINGLE GROUP. 19 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.