The Coil,radio Frequency, cataloged under National Stock Number 5950-00-891-8668, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications. Government technical data includes 10 specifications, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5950-00-891-8668 |
| Primary Part Number | 391-3821 |
| Item Name | Coil,radio Frequency |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications |
| Status | ACTIVE |
| Inclosure Type | OPEN |
| Overall Diameter | 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN |
| Turn Quantity | 6-1/2 SINGLE COMPONENT SINGLE WINDING |
| Mounting Method | TERMINAL SINGLE GROUP |
| Winding Conductor Size | 0.03196 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE WINDING IN |
| Coil Form Type | HOLLOW SINGLE COMPONENT |
| Rating Method | WINDING TURNS SINGLE COMPONENT SINGLE WINDING |
| Reliability Indicator | NOT ESTABLISHED |
| Core Construction | S0LID SINGLE COMPONENT |
| Terminal Type and Quantity | 2 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 |
|---|---|
| PL391-3821 | L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications (USA) |
| 391-3821 PRIMARY | L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications (USA) |
| 2599-15 | American Trans-Coil Corp (USA) |
| Reference | Meaning |
|---|---|
| MTC391-3821 | 5/9 Secondary reference Morley Transformer Co Inc |
| 24A226411-21-11 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 391-3821 | 5/9 Secondary reference Radionics Technologies Inc |
NSN 5950-00-891-8668 is a Coil,radio Frequency, manufactured by L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-891-8668 has 3 manufacturer part numbers on file: PL391-3821 (L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications), 391-3821 (L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications), 2599-15 (American Trans-Coil Corp).
1 possible match (shared part number, not a government interchangeability claim): 2520-01-322-1924. Verify interchangeability with system specifications before substitution.
Key specifications for 391-3821: Inclosure Type: OPEN; Overall Diameter: 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN; Turn Quantity: 6-1/2 SINGLE COMPONENT SINGLE WINDING; Mounting Method: TERMINAL SINGLE GROUP. 10 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.