The Semiconductor Device,diode, cataloged under National Stock Number 5961-01-004-8229, 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 Northrop Grumman Support Services Corp. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5961-01-004-8229 |
| Primary Part Number | 649A850H01 |
| Item Name | Semiconductor Device,diode |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Northrop Grumman Support Services Corp |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Features Provided | HERMETICALLY SEALED CASE |
| Material | SILICON SEMICONDUCTOR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| UM9158 | Microsemi Corp - Massachusetts Div Microsemi - Lowell (USA) |
| 649A850H01 PRIMARY | Northrop Grumman Support Services Corp (USA) |
| Reference | Meaning |
|---|---|
| 649A850H01 | 3/9 Design control — primary reference U.S. Government activity |
| 649A850 | D/9 Drawing number reference only U.S. Government activity |
NSN 5961-01-004-8229 is a Semiconductor Device,diode, manufactured by Northrop Grumman Support Services Corp, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-004-8229 has 2 manufacturer part numbers on file: UM9158 (Microsemi Corp - Massachusetts Div Microsemi - Lowell), 649A850H01 (Northrop Grumman Support Services Corp).
Key specifications for 649A850H01: Criticality Code Justification: FEAT; Overall Length: 0.465 INCHES NOMINAL IN; Features Provided: HERMETICALLY SEALED CASE; Special Features: WEAPONS SYSTEM ESSENTIAL; T.O. 31P3-TPS-43-54; NHA 5840-01-003-0723. 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.