The Transformer,pulse, cataloged under National Stock Number 5950-00-630-6954, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Viasys Respiratory Care Inc. Dba Biosys Healthcare. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 5950-00-630-6954 |
| Primary Part Number | BSC3821 |
| Item Name | Transformer,pulse |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Viasys Respiratory Care Inc. Dba Biosys Healthcare |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Body Outside Diameter | 0.438 INCHES NOMINAL IN |
| Mounting Method | TERMINAL SINGLE GROUP |
| Inductance Rating | 300.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY |
| Inductance Rating | 300.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE SECONDARY |
| Pulse Repetition Rate | 1.0 KILOHERTZ SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT |
| Body Length | 0.750 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Primary to Secondary Turn Ratio | 1 TO 1 SINGLE COMPONENT |
| Terminal Type and Quantity | 4 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 |
NSN 5950-00-630-6954 is a Transformer,pulse, manufactured by Viasys Respiratory Care Inc. Dba Biosys Healthcare, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-630-6954 has 2 manufacturer part numbers on file: BSC3821 (Viasys Respiratory Care Inc. Dba Biosys Healthcare), 2350659 (Lockheed Martin Corporation Div Rms - Mitchel Field).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-698-2090. Verify interchangeability with system specifications before substitution.
Key specifications for BSC3821: Inclosure Type: FULLY INCLOSED; Body Outside Diameter: 0.438 INCHES NOMINAL IN; Mounting Method: TERMINAL SINGLE GROUP; Inductance Rating: 300.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY. 11 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.