The Coil,radio Frequency, cataloged under National Stock Number 5950-00-199-0231, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-199-0231 |
| Primary Part Number | AC257-4-1 |
| Item Name | Coil,radio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Turn Quantity | 26 SINGLE COMPONENT SINGLE WINDING |
| Mounting Method | TERMINAL SINGLE GROUP |
| Adjustment Device Drive Type | SLOTTED SCREW SINGLE COMPONENT |
| Adjustment Method and Quantity | 1 ADJUSTABLE CORE SINGLE COMPONENT |
| Coil Form Type | HOLLOW SINGLE COMPONENT |
| Reliability Indicator | NOT ESTABLISHED |
| Core Construction | POWDERED SINGLE COMPONENT |
| Terminal Type and Quantity | 2 PIN |
| 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 |
|---|---|
| AC257-4-1 PRIMARY | Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc (USA) |
| Reference | Meaning |
|---|---|
| AC257-4-1 | 3/9 Design control — primary reference Aiken Advanced Systems Inc a Div of Amstar Technical Products Inc an Affil of Amstar Corp |
| AC25741 | C/1 Advisory reference — outside the item-of-supply concept Applied Communications a Div of Amstar Technical Products Co Inc an Affiliate of Amstar Corp |
NSN 5950-00-199-0231 is a Coil,radio Frequency, manufactured by Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-199-0231 has 1 manufacturer part number on file: AC257-4-1 (Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc).
Key specifications for AC257-4-1: Inclosure Type: FULLY INCLOSED; Turn Quantity: 26 SINGLE COMPONENT SINGLE WINDING; Mounting Method: TERMINAL SINGLE GROUP; Adjustment Device Drive Type: SLOTTED SCREW SINGLE COMPONENT. 9 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.