PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

54LS21DMMicrocircuit,digital

Fairchild Semiconductor Corp · NSN 5962-01-252-1183 · FSC 5962 · No Item Name Available
Verified by PartsTable
NSN 5962-01-252-1183 — this item is cataloged by the U.S. Government under National Stock Number 5962-01-252-1183. Primary manufacturer part number: 54LS21DM.
Features
  • Microcircuit,digital — FSC 5962
  • Body Height: 0.185 INCHES MAXIMUM IN
  • Inclosure Configuration: DUAL-IN-LINE
  • Body Length: 0.750 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
  • Output Logic Form: COMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC
  • Inclosure Material: CERAMIC
  • Operating Temp Range: -55.0 TO 55.0 CELSIUS DEGC
  • Design Function and Quantity: 2 GATE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microcircuit,digital, cataloged under National Stock Number 5962-01-252-1183, is classified within Federal Supply Class 5962 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Fairchild Semiconductor Corp. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5962-01-252-1183
Primary Part Number54LS21DM
Item NameMicrocircuit,digital
FSC / FSG5962 / 59 — No Item Name Available
ManufacturerFairchild Semiconductor Corp
StatusACTIVE
Body Height0.185 INCHES MAXIMUM IN
Inclosure ConfigurationDUAL-IN-LINE
Body Length0.750 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
Output Logic FormCOMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC
Inclosure MaterialCERAMIC
Operating Temp Range-55.0 TO 55.0 CELSIUS DEGC
Design Function and Quantity2 GATE
Body Width0.245 INCHES MINIMUM AND 0.271 INCHES MAXIMUM IN
Input Circuit PatternDUAL 4 INPUT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5962-01-171-2154 INTERCHANGEABLE
Microcircuit,digital
Cross-Reference Index
Part NumberManufacturer
54LS21DM Fairchild Semiconductor Corp (USA)
Related Parts
5962-01-171-2154INTERCHANGEABLE
MICROCIRCUIT,DIGITAL

Frequently Asked Questions

What is NSN 5962-01-252-1183?

NSN 5962-01-252-1183 is a Microcircuit,digital, manufactured by Fairchild Semiconductor Corp, classified under FSC 5962 (No Item Name Available). Status: active.

What are the part numbers for NSN 5962-01-252-1183?

NSN 5962-01-252-1183 has 1 cross-referenced part number: 54LS21DM (Fairchild Semiconductor Corp).

What NSN replaces 5962-01-252-1183?

There is 1 known substitute for 5962-01-252-1183: 5962-01-171-2154. Verify interchangeability with system specifications before substitution.

What are the specifications of 54LS21DM?

Key specifications for 54LS21DM: Body Height: 0.185 INCHES MAXIMUM IN; Inclosure Configuration: DUAL-IN-LINE; Body Length: 0.750 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN; Output Logic Form: COMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC. 9 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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