The Coil,radio Frequency, cataloged under National Stock Number 5950-00-938-4230, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Spencer Industries Inc. Government technical data includes 13 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 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-938-4230 |
| Primary Part Number | B685 |
| Item Name | Coil,radio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Spencer Industries Inc |
| Status | ACTIVE |
| Mounting Facility Quantity | 1 SINGLE GROUP |
| Inclosure Type | FULLY INCLOSED |
| Overall Diameter | 1.750 INCHES NOMINAL IN |
| Mounting Method | THREADED HOLE(S) SINGLE GROUP |
| Adjustment Device Drive Type | SLOTTED SCREW SINGLE COMPONENT |
| Adjustment Method and Quantity | 2 ADJUSTABLE CORE SINGLE COMPONENT |
| Coil Form Type | SOLID SINGLE COMPONENT |
| Nominal Thread Size | 0.138 INCHES SINGLE GROUP IN |
| Body Length | 5.000 INCHES NOMINAL IN |
| Core Construction | LAMINATED SINGLE COMPONENT |
| Thread Quantity Per Inch | 32 SINGLE GROUP |
| Terminal Type and Quantity | 2 TAB, SOLDER LUG |
| 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 |
|---|---|
| B685 PRIMARY | Spencer Industries Inc (USA) |
NSN 5950-00-938-4230 is a Coil,radio Frequency, manufactured by Spencer Industries Inc, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-938-4230 has 1 manufacturer part number on file: B685 (Spencer Industries Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4510-01-211-7125, 3120-01-504-3924. Verify interchangeability with system specifications before substitution.
Key specifications for B685: Mounting Facility Quantity: 1 SINGLE GROUP; Inclosure Type: FULLY INCLOSED; Overall Diameter: 1.750 INCHES NOMINAL IN; Mounting Method: THREADED HOLE(S) SINGLE GROUP. 13 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.