The Calculator,electronic, cataloged under National Stock Number 7420-00-587-1000, is classified within Federal Supply Class 7420 (Accounting and Calculating Machines) of the Office Machines and Visible Record Equipment group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 7420-00-587-1000 |
| Item Name | Calculator,electronic |
| FSC / FSG | 7420 / 74 — Accounting and Calculating Machines |
| Status | ACTIVE |
| Current Type | AC |
| Radio Interference Shielding | PROVIDED |
| Digit Totalizing Capacity | 12 |
| Automatic Multiplication Feature | INCLUDED |
| Unit Type | LISTING |
| Carrying Case | NOT PROVIDED |
| Frequency Rating | 50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM |
| Digit Entering Capacity | 12 |
| Voltage Rating | 105.0 VOLTS MINIMUM AND 130.0 VOLTS MAXIMUM |
| Operation Method | ELECTRICAL |
| Keyboard Type | 10 KEY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| TI500 | 3/9 Design control — primary reference Texas Instruments Incorporated |
| TI500 | 5/9 Secondary reference U.S. Government activity |
NSN 7420-00-587-1000 is a Calculator,electronic, classified under FSC 7420, Accounting and Calculating Machines. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5920-01-649-6820. Verify interchangeability with system specifications before substitution.
Key specifications for 7420-00-587-1000: Current Type: AC; Radio Interference Shielding: PROVIDED; Digit Totalizing Capacity: 12; Automatic Multiplication Feature: INCLUDED. 11 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.