The Transformer,pulse, cataloged under National Stock Number 5950-00-702-8580, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Pulse Engineering Inc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5950-00-702-8580 |
| Primary Part Number | EF71-2250 |
| Item Name | Transformer,pulse |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Pulse Engineering Inc |
| Status | ACTIVE |
| Inclosure Type | HERMETICALLY SEALED |
| Body Outside Diameter | 0.500 INCHES NOMINAL IN |
| Mounting Method | TERMINAL SINGLE GROUP |
| Inductance Rating | 10.00 MILLIHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Winding Function and Quantity | 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT |
| Impedance Rating in Ohms | 22.0 NOMINAL SINGLE COMPONENT FIRST SECONDARY |
| Impedance Rating in Ohms | 350.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Impedance Rating in Ohms | 88.0 NOMINAL SINGLE COMPONENT SECOND SECONDARY |
| Body Length | 0.891 INCHES MAXIMUM IN |
| Reliability Indicator | NOT ESTABLISHED |
| Primary to Secondary Turn Ratio | 4 TO 1 TO 2 SINGLE COMPONENT |
| Terminal Type and Quantity | 6 WIRE LEAD |
| 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 |
|---|---|
| B2250 | Pulse Engineering Inc (USA) |
| PE2250-4 | Pulse Engineering Inc (USA) |
| EF71-2250 PRIMARY | Pulse Engineering Inc (USA) |
| EF712250 | Pulse Engineering Inc (USA) |
| Reference | Meaning |
|---|---|
| 1022788 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
| SMD337029 | 5/2 Secondary reference U.S. Government activity |
NSN 5950-00-702-8580 is a Transformer,pulse, manufactured by Pulse Engineering Inc, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-702-8580 has 4 manufacturer part numbers on file: B2250 (Pulse Engineering Inc), PE2250-4 (Pulse Engineering Inc), EF71-2250 (Pulse Engineering Inc), EF712250 (Pulse Engineering Inc).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-522-9911. Verify interchangeability with system specifications before substitution.
Key specifications for EF71-2250: Inclosure Type: HERMETICALLY SEALED; Body Outside Diameter: 0.500 INCHES NOMINAL IN; Mounting Method: TERMINAL SINGLE GROUP; Inductance Rating: 10.00 MILLIHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY. 12 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.