The Microcircuit,digital, cataloged under National Stock Number 5962-01-074-4788, is classified within Federal Supply Class 5962 (Microcircuits, Electronic) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5962-01-074-4788 |
| Primary Part Number | 642AS8021 |
| Item Name | Microcircuit,digital |
| FSC / FSG | 5962 / 59 — Microcircuits, Electronic |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Input Circuit Pattern | HEX 1 INPUT |
| Inclosure Material | CERAMIC AND GLASS |
| Terminal Surface Treatment | SOLDER |
| Design Function and Quantity | 6 FLIP-FLOP, D-TYPE |
| Body Width | 0.285 INCHES MAXIMUM IN |
| Body Height | 0.050 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| Features Provided | HERMETICALLY SEALED AND MONOLITHIC AND POSITIVE OUTPUTS AND COMPLEMENTARY OUTPUTS AND LOW POWER AND MEDIUM SPEED AND SCHOTTKY AND W/CLEAR AND W/ENABLE |
| Inclosure Configuration | FLAT PACK |
| Body Length | 0.371 INCHES MINIMUM AND 0.400 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 | 5.5 VOLTS MAXIMUM POWER SOURCE |
| Operating Temp Range | -55.0 TO 125.0 CELSIUS DEGC |
| Test Data Document | 30003-642AS8021 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| Terminal Type and Quantity | 16 FLAT LEADS |
| Maximum Power Dissipation Rating | 11.0 MILLIWATTS |
| Time Rating Per Chacteristic | 30.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, LOW TO HIGH LEVEL OUTPUT AND 35.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, HIGH TO LOW LEVEL OUTPUT NS |
| 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 |
|---|---|
| 642AS8021 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 6088795 | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| 642AS8021 | Fairchild Semiconductor Corp (USA) |
| Reference | Meaning |
|---|---|
| SN54LS174W | 5/1 Secondary reference Texas Instruments Incorporated |
| AM54LS174FM | 5/9 Secondary reference Advanced Micro Devices Inc Dba AMD Austin |
| 642AS8021 | 5/9 Secondary reference Texas Instruments Incorporated |
| 54LS174FM | 5/1 Secondary reference Fairchild Semiconductor Corp |
| 642AS8021 | 5/9 Secondary reference Advanced Micro Devices Inc Dba AMD Austin |
| SN53699 | 5/9 Secondary reference Texas Instruments Incorporated |
NSN 5962-01-074-4788 is a Microcircuit,digital, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5962, Microcircuits, Electronic. Status: active.
NSN 5962-01-074-4788 has 3 manufacturer part numbers on file: 642AS8021 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 6088795 (Lockheed Martin Corporation Div Rotary and Mission Systems), 642AS8021 (Fairchild Semiconductor Corp).
1 possible match (shared part number, not a government interchangeability claim): 5962-01-371-9047. Verify interchangeability with system specifications before substitution.
Key specifications for 642AS8021: Input Circuit Pattern: HEX 1 INPUT; Inclosure Material: CERAMIC AND GLASS; Terminal Surface Treatment: SOLDER; Design Function and Quantity: 6 FLIP-FLOP, D-TYPE. 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 5962-01-074-4788 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.