The Microcircuit,memory, cataloged under National Stock Number 5962-01-082-0582, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5962-01-082-0582 |
| Primary Part Number | MM5257J-25 |
| Item Name | Microcircuit,memory |
| FSC / FSG | 5962 / 59 — Microcircuits, Electronic |
| Manufacturer | National Semiconductor Corporation |
| Status | ACTIVE |
| Input Circuit Pattern | 15 INPUT |
| Inclosure Material | CERAMIC AND GLASS |
| Terminal Surface Treatment | SOLDER |
| Body Width | 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN |
| Body Height | 0.165 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN |
| Features Provided | W/DECODED OUTPUT AND 3-STATE OUTPUT AND POSITIVE OUTPUTS |
| Inclosure Configuration | DUAL-IN-LINE |
| Memory Device Type | RAM |
| Body Length | 0.910 INCHES MAXIMUM IN |
| Storage Temp Range | -65.0 TO 150.0 CELSIUS DEGC |
| Output Logic Form | N-TYPE METAL OXIDE-SEMICONDUCTOR LOGIC |
| Voltage Rating and Type Per Characteristic | 5.0 VOLTS MAXIMUM POWER SOURCE |
| Operating Temp Range | +0.0 TO 70.0 CELSIUS DEGC |
| Terminal Type and Quantity | 18 PRINTED CIRCUIT |
| Maximum Power Dissipation Rating | 440.0 MILLIWATTS |
| Memory Capacity | UNKNOWN |
| Time Rating Per Chacteristic | 250.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, LOW TO HIGH LEVEL OUTPUT AND 250.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, HIGH TO LOW LEVEL OUTPUT NS |
| 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 |
|---|---|
| MM5257J-25 | National Semiconductor Corporation (USA) |
| Reference | Meaning |
|---|---|
| B77T0388-2321 | 3/9 Design control — primary reference Mcdonnell Douglas Corp Mcdonnell Douglas Electronic Systems Co |
| TMS4044-25JL | 5/9 Secondary reference Texas Instruments Incorporated |
| TMS4044-25NL | 5/9 Secondary reference Texas Instruments Incorporated |
NSN 5962-01-082-0582 is a Microcircuit,memory, manufactured by National Semiconductor Corporation, classified under FSC 5962, Microcircuits, Electronic. Status: active.
NSN 5962-01-082-0582 has 1 manufacturer part number on file: MM5257J-25 (National Semiconductor Corporation).
Key specifications for MM5257J-25: Input Circuit Pattern: 15 INPUT; Inclosure Material: CERAMIC AND GLASS; Terminal Surface Treatment: SOLDER; Body Width: 0.290 INCHES MINIMUM AND 0.310 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.
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.