The Semiconductor Devices,unitized, cataloged under National Stock Number 5961-00-320-6664, 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 Emhiser Tele-Tech Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5961-00-320-6664 |
| Primary Part Number | AT53 |
| Item Name | Semiconductor Devices,unitized |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Emhiser Tele-Tech Inc |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 70.0 MINIMUM BREAKDOWN VOLTAGE, INSTANTANEOUS ALL SEMICONDUCTOR DEVICE DIODE |
| Overall Diameter | 0.370 INCHES MAXIMUM IN |
| Mounting Method | TERMINAL |
| Semiconductor Material | SILICON ALL SEMICONDUCTOR DEVICE DIODE |
| Component Name and Quantity | 4 SEMICONDUCTOR DEVICE DIODE |
| Features Provided | HERMETICALLY SEALED CASE |
| Terminal Type and Quantity | 4 UNINSULATED WIRE LEAD |
| 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 |
|---|---|
| AT53 PRIMARY | Emhiser Tele-Tech Inc (USA) |
| Reference | Meaning |
|---|---|
| 730 | 5/9 Secondary reference Methodical Svc. Corp Div Operations |
| SMA731233-1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 210-730-00 | 5/9 Secondary reference Methodical Svc. Corp Div Operations |
| M0DEL730 | C/1 Advisory reference — outside the item-of-supply concept Methodical Svc. Corp Div Operations |
NSN 5961-00-320-6664 is a Semiconductor Devices,unitized, manufactured by Emhiser Tele-Tech Inc, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-00-320-6664 has 1 manufacturer part number on file: AT53 (Emhiser Tele-Tech Inc).
1 possible match (shared part number, not a government interchangeability claim): 5998-00-482-5327. Verify interchangeability with system specifications before substitution.
Key specifications for AT53: Voltage Rating in Volts Per Characteristic: 70.0 MINIMUM BREAKDOWN VOLTAGE, INSTANTANEOUS ALL SEMICONDUCTOR DEVICE DIODE; Overall Diameter: 0.370 INCHES MAXIMUM IN; Mounting Method: TERMINAL; Semiconductor Material: SILICON ALL SEMICONDUCTOR DEVICE DIODE. 7 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.