PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1205-0733Heat Sink,electrical-Electronic

Keysight Technologies Inc · NSN 5999-01-428-5911 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-428-5911 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-428-5911. Primary manufacturer part number: 1205-0733.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • Unthreaded Mounting Hole Diameter: 0.351 INCHES MINIMUM AND 0.358 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN
  • Mounting Facility Type and Quantity: 1 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Surface Treatment: ANODIZE
  • Material: ALUMINUM
  • Accommodated Device Mounting Hole Quantity: 1
  • Body Style: CYLINDRICAL
  • Overall Diameter: 1.230 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
Applications
  • Applications requiring Aluminum construction
General Description

The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-428-5911, 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 Keysight Technologies Inc. Government technical data includes 14 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-428-5911
Primary Part Number1205-0733
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerKeysight Technologies Inc
StatusACTIVE
Unthreaded Mounting Hole Diameter0.351 INCHES MINIMUM AND 0.358 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN
Mounting Facility Type and Quantity1 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Surface TreatmentANODIZE
MaterialALUMINUM
Accommodated Device Mounting Hole Quantity1
Body StyleCYLINDRICAL
Overall Diameter1.230 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
Unthreaded Mounting Hole Diameter0.351 INCHES MINIMUM AND 0.358 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN
Mounting Facility Type and Quantity1 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Surface TreatmentANODIZE
MaterialALUMINUM
Accommodated Device Mounting Hole Quantity1
Body StyleCYLINDRICAL
Overall Diameter1.230 INCHES MINIMUM AND 1.270 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 8
5133-00-189-9273 INTERCHANGEABLE
Drill,twist
3460-00-244-761518028 INTERCHANGEABLE
Arbor,hole Saw
Black and Decker Us Inc
3455-00-251-114654-10135 INTERCHANGEABLE
Cutter,milling,involute Gear
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
2530-00-741-241518028 INTERCHANGEABLE
Brake Drum
Paccar Winch Inc Dba Paccar Winch Division
3130-01-142-6359 INTERCHANGEABLE
Housing,bearing Unit
4520-01-184-5158 INTERCHANGEABLE
Heating Element,electrical,nonim
4730-01-280-8345995250 INTERCHANGEABLE
Adapter,straight,pipe to Boss
D & D Instruments Inc
4320-01-658-21951802-8 INTERCHANGEABLE
Ejector,jet
Vita Motivator Co Inc Div Vita Motivator Company
Cross-Reference Index
Part NumberManufacturer
1205-0733 PRIMARY Keysight Technologies Inc (USA)
18028 Thermalloy Co Inc (USA)
1205-0733 Hewlett-Packard Company Dba HP (USA)
1205-0733 Keysight Technologies, Inc. (USA)
Related Parts
5133-00-189-9273INTERCHANGEABLE
DRILL,TWIST
3460-00-244-7615INTERCHANGEABLE
ARBOR,HOLE SAW
18028
3455-00-251-1146INTERCHANGEABLE
CUTTER,MILLING,INVOLUTE GEAR
54-10135
2530-00-741-2415INTERCHANGEABLE
BRAKE DRUM
18028
3130-01-142-6359INTERCHANGEABLE
HOUSING,BEARING UNIT
4520-01-184-5158INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
4730-01-280-8345INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO BOSS
995250
4320-01-658-2195INTERCHANGEABLE
EJECTOR,JET
1802-8

Frequently Asked Questions

What is NSN 5999-01-428-5911?

NSN 5999-01-428-5911 is a Heat Sink,electrical-Electronic, manufactured by Keysight Technologies Inc, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-428-5911?

NSN 5999-01-428-5911 has 4 cross-referenced part numbers: 1205-0733 (Keysight Technologies Inc), 18028 (Thermalloy Co Inc), 1205-0733 (Hewlett-Packard Company Dba HP), 1205-0733 (Keysight Technologies, Inc.).

What NSN replaces 5999-01-428-5911?

There are 8 known substitutes for 5999-01-428-5911: 5133-00-189-9273, 3460-00-244-7615, 3455-00-251-1146 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1205-0733?

Key specifications for 1205-0733: Unthreaded Mounting Hole Diameter: 0.351 INCHES MINIMUM AND 0.358 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN; Mounting Facility Type and Quantity: 1 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Special Features: CASE STYLE ACCOMMODATED: TO-5/TO+39. DISSIPATION FACTOR-30 DEGREES.; Surface Treatment: ANODIZE. 22 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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