PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

645A726H13Heat Sink,electrical-Electronic

Northrop Grumman Support Services Corp · NSN 5999-01-295-5433 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-295-5433 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-295-5433. Primary manufacturer part number: 645A726H13.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • 3 verified cross-references
  • Primary manufacturer: Northrop Grumman Support Services Corp
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 5999-01-295-5433, 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 Northrop Grumman Support Services Corp. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-295-5433
Primary Part Number645A726H13
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Support Services Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-00-845-8998
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeG
Verified Substitutes 12
Voltmeter
5950-00-027-24971284 INTERCHANGEABLE
Reactor
Comspace Corp Munston Electronics Div
5365-00-056-2415 INTERCHANGEABLE
Spacer,ring
6610-00-224-42521284 INTERCHANGEABLE
Vibrator,altimeter
Centroid, Inc. Dba Centroid Inc
2990-00-432-133321803 INTERCHANGEABLE
Muffler,exhaust
Walker Mfg Co
1650-00-513-4808 INTERCHANGEABLE
Screw,actuating Cyl
3110-00-554-3247059-1 INTERCHANGEABLE
Bearing,ball,annular
Jay Electric Co
5950-00-645-8960 INTERCHANGEABLE
Transformer,power
5930-00-772-0598 INTERCHANGEABLE
Switch,rotary
3040-00-909-67861284 INTERCHANGEABLE
Gearshaft,spur
Gsl Manufacturing Co.
Cross-Reference Index
Part NumberManufacturer
645A726H13 Northrop Grumman Support Services Corp (USA)
1284 Pearson Electronics Inc (USA)
645A726H13 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Related Parts
SUCCESSOR 6625-00-845-8998 Voltmeter
5950-00-027-2497INTERCHANGEABLE
REACTOR
1284
5365-00-056-2415INTERCHANGEABLE
SPACER,RING
6610-00-224-4252INTERCHANGEABLE
VIBRATOR,ALTIMETER
1284
2990-00-432-1333INTERCHANGEABLE
MUFFLER,EXHAUST
21803
1650-00-513-4808INTERCHANGEABLE
SCREW,ACTUATING CYL
3110-00-554-3247INTERCHANGEABLE
BEARING,BALL,ANNULAR
059-1
5950-00-645-8960INTERCHANGEABLE
TRANSFORMER,POWER
5930-00-772-0598INTERCHANGEABLE
SWITCH,ROTARY
3040-00-909-6786INTERCHANGEABLE
GEARSHAFT,SPUR
1284
1650-00-937-2614INTERCHANGEABLE
HOUSING,HYDRALIC SE
1284
5935-00-977-9513INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
2432

Frequently Asked Questions

What is NSN 5999-01-295-5433?

NSN 5999-01-295-5433 is a Heat Sink,electrical-Electronic, manufactured by Northrop Grumman Support Services Corp, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-295-5433?

NSN 5999-01-295-5433 has 3 cross-referenced part numbers: 645A726H13 (Northrop Grumman Support Services Corp), 1284 (Pearson Electronics Inc), 645A726H13 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).

What NSN replaces 5999-01-295-5433?

There are 12 known substitutes for 5999-01-295-5433: 6625-00-845-8998, 5950-00-027-2497, 5365-00-056-2415 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 645A726H13?

Key specifications for 645A726H13: Special Features: NSN RESTRICTED TO USE BY NWS DEPOT TEAM ONLY; End Item Identification: AIRPORT SURVEILLANCE RADAR (ASR-9); NEXT GENERATION RADAR (NEXRAD); Special Features: NSN RESTRICTED TO USE BY NWS DEPOT TEAM ONLY; End Item Identification: AIRPORT SURVEILLANCE RADAR (ASR-9); NEXT GENERATION RADAR (NEXRAD). 4 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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