PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

80771-1Heat Sink,electrical-Electronic

L3harris Technologies, Inc. Div Space and Airborne Systems · NSN 5999-01-369-2737 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-369-2737 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-369-2737. Primary manufacturer part number: 80771-1.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • Material: ALUMINUM ALLOY 6061
  • Material Document and Classification: QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE
  • Material: ALUMINUM ALLOY 6061
  • Material Document and Classification: QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE
  • 1 verified cross-reference
  • Primary manufacturer: L3harris Technologies, Inc. Div Space and Airborne Systems
Applications
  • Applications requiring Aluminum Alloy 6061 construction
General Description

The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-369-2737, 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 L3harris Technologies, Inc. Div Space and Airborne Systems. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-369-2737
Primary Part Number80771-1
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerL3harris Technologies, Inc. Div Space and Airborne Systems
StatusACTIVE
MaterialALUMINUM ALLOY 6061
Material Document and ClassificationQQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE
MaterialALUMINUM ALLOY 6061
Material Document and ClassificationQQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 2
5120-00-031-674432101 INTERCHANGEABLE
Wrench,socket
Renk America Llc Div Renk America
5310-00-682-5585807711 INTERCHANGEABLE
Washer,flat
Garwood/feller Inc Garwood Winch Div
Cross-Reference Index
Part NumberManufacturer
80771-1 PRIMARY L3harris Technologies, Inc. Div Space and Airborne Systems (USA)
Related Parts
5120-00-031-6744INTERCHANGEABLE
WRENCH,SOCKET
32101
5310-00-682-5585INTERCHANGEABLE
WASHER,FLAT
807711

Frequently Asked Questions

What is NSN 5999-01-369-2737?

NSN 5999-01-369-2737 is a Heat Sink,electrical-Electronic, manufactured by L3harris Technologies, Inc. Div Space and Airborne Systems, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-369-2737?

NSN 5999-01-369-2737 has 1 cross-referenced part number: 80771-1 (L3harris Technologies, Inc. Div Space and Airborne Systems).

What NSN replaces 5999-01-369-2737?

There are 2 known substitutes for 5999-01-369-2737: 5120-00-031-6744, 5310-00-682-5585. Verify interchangeability with system specifications before substitution.

What are the specifications of 80771-1?

Key specifications for 80771-1: Overall Width: 4.500 INCHES NOMINAL IN; Material: ALUMINUM ALLOY 6061; Material Document and Classification: QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE; Overall Length: 7.812 INCHES NOMINAL IN. 10 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