The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-717-3156, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Payne Magnetics, Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5950-00-717-3156 |
| Primary Part Number | B638 |
| Item Name | Transformer,audio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Payne Magnetics, Inc. |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| 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 |
|---|---|
| B638 | Payne Magnetics, Inc. (USA) |
| 1048597 | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| WM-1208 | Magnetic Components Inc (USA) |
| Reference | Meaning |
|---|---|
| 1048597 | 5/9 Secondary reference Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div |
| T294A | 3/9 Design control — primary reference U.S. Government activity |
| 1208 | 5/9 Secondary reference Magnetic Components Inc |
NSN 5950-00-717-3156 is a Transformer,audio Frequency, manufactured by Payne Magnetics, Inc., classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-717-3156 has 3 manufacturer part numbers on file: B638 (Payne Magnetics, Inc.), 1048597 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)), WM-1208 (Magnetic Components Inc).
1 possible match (shared part number, not a government interchangeability claim): 5915-01-486-6058. Verify interchangeability with system specifications before substitution.
Key specifications for B638: Inclosure Type: FULLY INCLOSED. 1 specification is 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.