PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

129032-88Heat Sink,electrical-Electronic

Lockheed Martin Corp · NSN 5999-01-331-8165 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-331-8165 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-331-8165. Primary manufacturer part number: 129032-88.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • 2 verified cross-references
  • Primary manufacturer: Lockheed Martin 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 5999-01-331-8165, 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 Lockheed Martin Corp. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-331-8165
Primary Part Number129032-88
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeBL
Unit of IssueEA
SMR CodeD
Weight0.0350 lbs
Cube0.0004 cu ft
Verified Substitutes 4
5310-00-616-8575129602 INTERCHANGEABLE
Washer,lock
Cummins Inc.
6515-01-285-78641296-0203 INTERCHANGEABLE
Cassette Injection Set
Abbott Laboratories Inc. Div Hospital Products Division
5985-01-390-456968J878006-205 INTERCHANGEABLE
Waveguide Assembly
The Boeing Company Div Defense
5895-01-675-346712960-2 INTERCHANGEABLE
Computer,special Purpose
Gatr Technologies, Inc.
Cross-Reference Index
Part NumberManufacturer
129032-88 Lockheed Martin Corp (USA)
129602 Lockheed Martin Corp (USA)
Related Parts
5310-00-616-8575INTERCHANGEABLE
WASHER,LOCK
129602
6515-01-285-7864INTERCHANGEABLE
CASSETTE INJECTION SET
1296-0203
5985-01-390-4569INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
68J878006-205
5895-01-675-3467INTERCHANGEABLE
COMPUTER,SPECIAL PURPOSE
12960-2

Frequently Asked Questions

What is NSN 5999-01-331-8165?

NSN 5999-01-331-8165 is a Heat Sink,electrical-Electronic, manufactured by Lockheed Martin Corp, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-331-8165?

NSN 5999-01-331-8165 has 2 cross-referenced part numbers: 129032-88 (Lockheed Martin Corp), 129602 (Lockheed Martin Corp).

What NSN replaces 5999-01-331-8165?

There are 4 known substitutes for 5999-01-331-8165: 5310-00-616-8575, 6515-01-285-7864, 5985-01-390-4569 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 129032-88?

Key specifications for 129032-88: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS; Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS. 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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