The Microcircuit,memory, cataloged under National Stock Number 5962-01-258-7472, is classified within Federal Supply Class 5962 (Microcircuits, Electronic) of the Electrical and Electronic Equipment Components group. The manufacturer of record is National Semiconductor Corporation. Government technical data includes 17 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5962-01-258-7472 |
| Primary Part Number | 54F403DMQB |
| Item Name | Microcircuit,memory |
| FSC / FSG | 5962 / 59 — Microcircuits, Electronic |
| Manufacturer | National Semiconductor Corporation |
| Status | CANCELLED |
| Input Circuit Pattern | 16 INPUT |
| Inclosure Material | CERAMIC |
| Terminal Surface Treatment | SOLDER |
| Body Width | 0.610 INCHES MAXIMUM IN |
| Body Height | 0.210 INCHES MAXIMUM IN |
| Features Provided | HERMETICALLY SEALED AND BURN IN AND HIGH SPEED AND EXPANDABLE AND 3-STATE OUTPUT |
| Inclosure Configuration | DUAL-IN-LINE |
| Memory Device Type | FIRST-IN FIRST-OUT |
| Body Length | 1.290 INCHES MAXIMUM IN |
| Storage Temp Range | -65.0 TO 150.0 CELSIUS DEGC |
| Output Logic Form | TRANSISTOR-TRANSISTOR LOGIC |
| Voltage Rating and Type Per Characteristic | 5.0 VOLTS MAXIMUM POWER SOURCE |
| Operating Temp Range | -55.0 TO 125.0 CELSIUS DEGC |
| Test Data Document | 96906-MIL-STD-883 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.). |
| Terminal Type and Quantity | 24 PRINTED CIRCUIT |
| Memory Capacity | UNKNOWN |
| Time Rating Per Chacteristic | 40.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, LOW TO HIGH LEVEL OUTPUT AND 40.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, HIGH TO LOW LEVEL OUTPUT NS |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 74B059399-201 | The Boeing Company Div Defense (USA) |
| 54F403DMQB PRIMARY | National Semiconductor Corporation (USA) |
| Reference | Meaning |
|---|---|
| 54F403DMQB | 5/9 Secondary reference Fairchild Semiconductor Corp |
| 9403DMQB | C/1 Advisory reference — outside the item-of-supply concept Fairchild Semiconductor Corp |
| 15613-501-1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 9403ADMQB | 5/9 Secondary reference National Semiconductor Corporation |
NSN 5962-01-258-7472 is a Microcircuit,memory, manufactured by National Semiconductor Corporation, classified under FSC 5962, Microcircuits, Electronic. Status: cancelled.
NSN 5962-01-258-7472 has 2 manufacturer part numbers on file: 74B059399-201 (The Boeing Company Div Defense), 54F403DMQB (National Semiconductor Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 5962-01-318-9016, 5962-01-372-1263. Verify interchangeability with system specifications before substitution.
Key specifications for 54F403DMQB: Input Circuit Pattern: 16 INPUT; Inclosure Material: CERAMIC; Terminal Surface Treatment: SOLDER; Body Width: 0.610 INCHES MAXIMUM IN. 17 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.
NSN 5962-01-258-7472 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
NSN 5962-01-258-7472 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.