The Module,transistor, cataloged under National Stock Number 5963-01-418-5862, is classified within Federal Supply Class 5963 (Electronic Modules) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Powerex, Inc.. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5963-01-418-5862 |
| Primary Part Number | KS221K10 |
| Item Name | Module,transistor |
| FSC / FSG | 5963 / 59 — Electronic Modules |
| Manufacturer | Powerex, Inc. |
| Status | ACTIVE |
| Special Test Features | TERMINAL TYPE AND QUANTITY: 3 SCREW; MOUNTING METHOD: UNTHREADED HOLE; MOUNTING FACILITY QUANTITY: 2 |
| Supplementary Features | VOLTAGE RATING: 2500.0 MAXIMUM NONREPETITIVE REVERSE VOLTAGE |
| Material | SILICONE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| KS221K10 PRIMARY | Powerex, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 8734397 | 5/9 Secondary reference U.S. Government activity |
NSN 5963-01-418-5862 is a Module,transistor, manufactured by Powerex, Inc., classified under FSC 5963, Electronic Modules. Status: active.
NSN 5963-01-418-5862 has 1 manufacturer part number on file: KS221K10 (Powerex, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3940-01-701-8242. Verify interchangeability with system specifications before substitution.
Key specifications for KS221K10: Special Test Features: TERMINAL TYPE AND QUANTITY: 3 SCREW; MOUNTING METHOD: UNTHREADED HOLE; MOUNTING FACILITY QUANTITY: 2; Supplementary Features: VOLTAGE RATING: 2500.0 MAXIMUM NONREPETITIVE REVERSE VOLTAGE; Overall Length: 3.700 INCHES MAXIMUM IN; Special Features: SEMICONDUCTOR MATERIAL: SILICON; INCLOSURE MATERIAL: PLASTIC. 3 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.