The Transistor, cataloged under National Stock Number 5961-01-012-6687, is classified within Federal Supply Class 5961 (Semiconductor Devices and Associated Hardware) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Stmicroelectronics Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Transistor |
| FSC / FSG | 5961 — Semiconductor Devices and Associated Hardware (FSG 59) |
| Manufacturers | Stmicroelectronics Inc (CAGE 57962) |
| Parameter | Value |
|---|---|
| NSN | 5961-01-012-6687 |
| Primary Part Number | MPSA 42(NPTN253) |
| Item Name | Transistor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Stmicroelectronics Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| MPSA 42(NPTN253) | Stmicroelectronics Inc (USA) |
| Reference | Meaning |
|---|---|
| SPS797 | 5/9 Secondary reference Freescale Semiconductor, Inc. |
| 151-0444-00 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5961-01-012-6687 is a Transistor, manufactured by Stmicroelectronics Inc, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-012-6687 has 1 manufacturer part number on file: MPSA 42(NPTN253) (Stmicroelectronics Inc).
1 possible match (shared part number, not a government interchangeability claim): 5961-01-245-2055. Verify interchangeability with system specifications before substitution.
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.