PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6287Heat Sink,electrical-Electronic

Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron · NSN 5999-01-035-5379 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-035-5379 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-035-5379. Primary manufacturer part number: 6287.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Unthreaded Mounting Hole Diameter: 0.187 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Overall Diameter: 0.300 INCHES NOMINAL IN
  • Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Unthreaded Mounting Hole Diameter: 0.187 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Overall Diameter: 0.300 INCHES NOMINAL IN
  • 4 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-035-5379, 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 Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-035-5379
Primary Part Number6287
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerHalsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
StatusCANCELLED
Mounting Facility Type and Quantity2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Unthreaded Mounting Hole Diameter0.187 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Overall Diameter0.300 INCHES NOMINAL IN
Mounting Facility Type and Quantity2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Unthreaded Mounting Hole Diameter0.187 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Overall Diameter0.300 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Weight0.0100 lbs
Cube0.0076 cu ft
Verified Substitutes 12
6625-00-779-99384632 SUCCESSOR
Plug Assembly,detec
Electro Scientific Industries Inc
5999-01-127-6931904632 SUCCESSOR
Magnet,permanent
Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division
5305-00-010-0751100751 INTERCHANGEABLE
Screw,machine
General Motors Llc Dba General Motors Llc
6610-00-049-3989A3775-03 INTERCHANGEABLE
Damping Unit
Kelly Manufacturing Company
3110-00-144-85746315 INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
5935-00-257-73174632 INTERCHANGEABLE
Connector,receptacle,electrical
Amphenol Corp Div Amphenol Aerospace Operations
5950-00-519-5563 INTERCHANGEABLE
Coil,radio Frequency
2990-00-753-8002T1950H INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
1270-00-927-0442927C935P1 INTERCHANGEABLE
Cell Assembly,optical Instrument
Bae Systems Controls Inc.
5120-00-957-379821019 INTERCHANGEABLE
Syringe,solder Removal
Allen Tool and Mfg
Cross-Reference Index
Part NumberManufacturer
6287 PRIMARY Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron (USA)
6287 Dialight Corporation (USA)
028349 Thales Usa, Inc. Div Air Mobility Solutions ("ams") (USA)
4632 PRIMARY Keystone Electronics Corp (USA)
Related Parts
6625-00-779-9938SUCCESSOR
PLUG ASSEMBLY,DETEC
4632
5999-01-127-6931SUCCESSOR
MAGNET,PERMANENT
904632
5305-00-010-0751INTERCHANGEABLE
SCREW,MACHINE
100751
6610-00-049-3989INTERCHANGEABLE
DAMPING UNIT
A3775-03
3110-00-144-8574INTERCHANGEABLE
BEARING,BALL,ANNULAR
6315
5935-00-257-7317INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
4632
5950-00-519-5563INTERCHANGEABLE
COIL,RADIO FREQUENCY
2990-00-753-8002INTERCHANGEABLE
MUFFLER,EXHAUST
T1950H
1270-00-927-0442INTERCHANGEABLE
CELL ASSEMBLY,OPTICAL INSTRUMENT
927C935P1
5120-00-957-3798INTERCHANGEABLE
SYRINGE,SOLDER REMOVAL
21019
7025-01-053-8624INTERCHANGEABLE
HARD COPY UNIT
4632
5360-01-132-3904INTERCHANGEABLE
SPRING

Frequently Asked Questions

What is NSN 5999-01-035-5379?

NSN 5999-01-035-5379 is a Heat Sink,electrical-Electronic, manufactured by Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron, classified under FSC 5999 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5999-01-035-5379?

NSN 5999-01-035-5379 has 4 cross-referenced part numbers: 6287 (Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron), 6287 (Dialight Corporation), 028349 (Thales Usa, Inc. Div Air Mobility Solutions ("ams")), 4632 (Keystone Electronics Corp).

What NSN replaces 5999-01-035-5379?

There are 12 known substitutes for 5999-01-035-5379: 6625-00-779-9938, 5999-01-127-6931, 5305-00-010-0751 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6287?

Key specifications for 6287: Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Unthreaded Mounting Hole Diameter: 0.187 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Overall Length: 1.000 INCHES NOMINAL IN; Overall Diameter: 0.300 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-01-035-5379 still in active supply?

NSN 5999-01-035-5379 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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