PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS4122-14BHeat Sink,electrical-Electronic

Aerospace Industries Association of America, Inc Dba Aerospace Industries Association of American · NSN 5999-01-210-6429 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-210-6429 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-210-6429. Primary manufacturer part number: NAS4122-14B.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • Material: ALUMINUM ALLOY
  • Surface Treatment: ANODIZE
  • Material: ALUMINUM ALLOY
  • Surface Treatment: ANODIZE
  • 4 verified cross-references
  • Primary manufacturer: Aerospace Industries Association of America, Inc Dba Aerospace Industries Association of American
Applications
  • Applications requiring Aluminum Alloy construction
General Description

The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-210-6429, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Aerospace Industries Association of America, Inc Dba Aerospace Industries Association of American. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-210-6429
Primary Part NumberNAS4122-14B
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerAerospace Industries Association of America, Inc Dba Aerospace Industries Association of American
StatusCANCELLED
MaterialALUMINUM ALLOY
Surface TreatmentANODIZE
MaterialALUMINUM ALLOY
Surface TreatmentANODIZE
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5999-01-121-1194
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Verified Substitutes 6
No Item Name Available
Heat Sink,electrical-Electronic
Heat Sink,electrical-Electronic
Heat Sink,electrical-Electronic
Heat Sink,electrical-Electronic
Heat Sink,electrical-Electronic
Cross-Reference Index
Part NumberManufacturer
MIL-H-87111/6 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M87111/6-1A14 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
NAS4122 Aerospace Industries Association of America, Inc Dba Aerospace Industries Association of American (USA)
NAS4122-14B PRIMARY Aerospace Industries Association of America, Inc Dba Aerospace Industries Association of American (USA)
Related Parts
SUCCESSOR 5999-01-121-1194 Heat Sink,electrical-Electronic
5999-01-055-4181SUCCESSOR
NO ITEM NAME AVAILABLE
5999-01-210-8934SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-210-8935SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-210-9960SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-224-6302SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC

Frequently Asked Questions

What is NSN 5999-01-210-6429?

NSN 5999-01-210-6429 is a Heat Sink,electrical-Electronic, manufactured by Aerospace Industries Association of America, Inc Dba Aerospace Industries Association of American, classified under FSC 5999 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5999-01-210-6429?

NSN 5999-01-210-6429 has 4 cross-referenced part numbers: MIL-H-87111/6 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M87111/6-1A14 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), NAS4122 (Aerospace Industries Association of America, Inc Dba Aerospace Industries Association of American), NAS4122-14B (Aerospace Industries Association of America, Inc Dba Aerospace Industries Association of American).

What NSN replaces 5999-01-210-6429?

There are 6 known substitutes for 5999-01-210-6429: 5999-01-055-4181, 5999-01-121-1194, 5999-01-210-8934 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS4122-14B?

Key specifications for NAS4122-14B: Overall Length: 3.000 INCHES NOMINAL IN; Overall Height: 0.935 INCHES NOMINAL IN; Material: ALUMINUM ALLOY; Overall Width: 1.938 INCHES NOMINAL IN. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-01-210-6429 still in active supply?

NSN 5999-01-210-6429 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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