The Microcircuit,digital, cataloged under National Stock Number 5962-01-161-7520, 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 15 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5962-01-161-7520 |
| Primary Part Number | MM54HC74J |
| Item Name | Microcircuit,digital |
| FSC / FSG | 5962 / 59 — Microcircuits, Electronic |
| Manufacturer | National Semiconductor Corporation |
| Status | ACTIVE |
| Input Circuit Pattern | DUAL 4 INPUT |
| Inclosure Material | CERAMIC AND GLASS |
| Terminal Surface Treatment | SOLDER |
| Design Function and Quantity | 2 FLIP-FLOP, D-TYPE |
| Body Width | 0.310 INCHES MAXIMUM IN |
| Body Height | 0.160 INCHES MAXIMUM IN |
| Features Provided | HERMETICALLY SEALED AND LOW POWER AND MEDIUM SPEED |
| Inclosure Configuration | DUAL-IN-LINE |
| Body Length | 0.785 INCHES MAXIMUM IN |
| Storage Temp Range | -65.0 TO 150.0 CELSIUS DEGC |
| Output Logic Form | COMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC |
| Voltage Rating and Type Per Characteristic | 15.3 VOLTS MAXIMUM POWER SOURCE |
| Operating Temp Range | -55.0 TO 125.0 CELSIUS DEGC |
| Terminal Type and Quantity | 14 PRINTED CIRCUIT |
| Maximum Power Dissipation Rating | 500.0 MILLIWATTS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| DR221-1052-001/1 | Leonardo Uk Ltd (GBR) |
| 497474 | Medical Research Laboratories Inc Dba M R L Div Defibrillation Division (USA) |
| MM54HC74J PRIMARY | National Semiconductor Corporation (USA) |
| DR221-1052-001H | Leonardo Uk Ltd (GBR) |
| MC74HC74N | Nxp Semiconductors France (FRA) |
| Reference | Meaning |
|---|---|
| DESC8405601CX | C/1 Advisory reference — outside the item-of-supply concept Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| MC74HC74N | 5/1 Secondary reference Freescale Semiconductor, Inc. |
NSN 5962-01-161-7520 is a Microcircuit,digital, manufactured by National Semiconductor Corporation, classified under FSC 5962, Microcircuits, Electronic. Status: active.
NSN 5962-01-161-7520 has 5 manufacturer part numbers on file: DR221-1052-001/1 (Leonardo Uk Ltd), 497474 (Medical Research Laboratories Inc Dba M R L Div Defibrillation Division), MM54HC74J (National Semiconductor Corporation), DR221-1052-001H (Leonardo Uk Ltd), MC74HC74N (Nxp Semiconductors France).
2 possible matches (shared part number, not a government interchangeability claim): 5962-01-220-2227, 2930-01-486-3992. Verify interchangeability with system specifications before substitution.
Key specifications for MM54HC74J: Input Circuit Pattern: DUAL 4 INPUT; Inclosure Material: CERAMIC AND GLASS; Terminal Surface Treatment: SOLDER; Design Function and Quantity: 2 FLIP-FLOP, D-TYPE. 15 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 5962-01-161-7520 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.