PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

140-654Heat Sink,electrical-Electronic

Technipower Llc Dba Unipower · NSN 5999-00-169-1981 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-169-1981 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-169-1981. Primary manufacturer part number: 140-654.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • Material: ALUMINUM
  • Material: ALUMINUM
  • 2 verified cross-references
  • Primary manufacturer: Technipower Llc Dba Unipower
Applications
  • Applications requiring Aluminum construction
General Description

The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-00-169-1981, 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 Technipower Llc Dba Unipower. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5999-00-169-1981
Primary Part Number140-654
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerTechnipower Llc Dba Unipower
StatusACTIVE
MaterialALUMINUM
MaterialALUMINUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3110-00-100-0248 INTERCHANGEABLE
Cone and Rollers,tapered Roller
3020-00-752-3387140654-01 INTERCHANGEABLE
Gear Cluster
Ge Aviation Systems Llc
3020-01-292-4445 INTERCHANGEABLE
Sprocket Wheel
3020-01-551-4586140-654 INTERCHANGEABLE
Sprocket Wheel
Ditch Witch of Charlotte, Inc Dba Ditch Witch of the Carolinas
Cross-Reference Index
Part NumberManufacturer
140-654 PRIMARY Technipower Llc Dba Unipower (USA)
V00502-003 Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA)
Related Parts
3110-00-100-0248INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
3020-00-752-3387INTERCHANGEABLE
GEAR CLUSTER
140654-01
3020-01-292-4445INTERCHANGEABLE
SPROCKET WHEEL
3020-01-551-4586INTERCHANGEABLE
SPROCKET WHEEL
140-654

Frequently Asked Questions

What is NSN 5999-00-169-1981?

NSN 5999-00-169-1981 is a Heat Sink,electrical-Electronic, manufactured by Technipower Llc Dba Unipower, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-169-1981?

NSN 5999-00-169-1981 has 2 cross-referenced part numbers: 140-654 (Technipower Llc Dba Unipower), V00502-003 (Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc).

What NSN replaces 5999-00-169-1981?

There are 4 known substitutes for 5999-00-169-1981: 3110-00-100-0248, 3020-00-752-3387, 3020-01-292-4445 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 140-654?

Key specifications for 140-654: Material: ALUMINUM; Overall Height: 2.000 INCHES MAXIMUM IN; Overall Width: 4.250 INCHES MAXIMUM IN; Overall Length: 5.000 INCHES MAXIMUM IN. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com