PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

352-9663-100Heat Sink-Insulator

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems · NSN 5999-01-321-5049 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-321-5049 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-321-5049. Primary manufacturer part number: 352-9663-100.
Features
  • Heat Sink-Insulator — FSC 5999
  • 2 verified cross-references
  • Primary manufacturer: Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heat Sink-Insulator, cataloged under National Stock Number 5999-01-321-5049, 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 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-321-5049
Primary Part Number352-9663-100
Item NameHeat Sink-Insulator
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerRockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Verified Substitutes 3
5360-00-043-2214100988 INTERCHANGEABLE
Spring,helical,compression
Astronautics Corporation of America
5950-00-271-1844989112-50B INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Dba Raytheon
5999-01-522-7587 INTERCHANGEABLE
Heat Sink-Insulator
Cross-Reference Index
Part NumberManufacturer
352-9663-100 PRIMARY Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
1009-88 Henkel Corporation (USA)
Related Parts
5360-00-043-2214INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
100988
5950-00-271-1844INTERCHANGEABLE
COIL,RADIO FREQUENCY
989112-50B
5999-01-522-7587INTERCHANGEABLE
HEAT SINK-INSULATOR

Frequently Asked Questions

What is NSN 5999-01-321-5049?

NSN 5999-01-321-5049 is a Heat Sink-Insulator, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-321-5049?

NSN 5999-01-321-5049 has 2 cross-referenced part numbers: 352-9663-100 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 1009-88 (Henkel Corporation).

What NSN replaces 5999-01-321-5049?

There are 3 known substitutes for 5999-01-321-5049: 5360-00-043-2214, 5950-00-271-1844, 5999-01-522-7587. Verify interchangeability with system specifications before substitution.

What are the specifications of 352-9663-100?

Key specifications for 352-9663-100: Special Features: COMPOSITE SILICON RUBBER AND FIBERGLASS; 1.640 IN. MIN. TO 1.670 IN. MAX. LG; 1.172 IN. MIN. TO 1.202 IN. MAX. W; 0.008 IN. MIN. TO 0.010 IN. MAX. THK; (2) 0.141 IN. MIN. TO 0.171 IN. MAX. DIA. MTG HOLES SPACED 1.172 IN. MIN. TO 1.202 IN. MAX. C TO C ALONG LENGTH; (8) 0.045 IN. MIN. TO 0.075 IN. MAX. DIA. MTG HOLES SPACED 40.0 DEG. APART ON A 0.250 IN. RADIUS; TEMPERATURE RANGE NEG 60.0 DEG. C TO 180.0 DEG. C IN; Special Features: COMPOSITE SILICON RUBBER AND FIBERGLASS; 1.640 IN. MIN. TO 1.670 IN. MAX. LG; 1.172 IN. MIN. TO 1.202 IN. MAX. W; 0.008 IN. MIN. TO 0.010 IN. MAX. THK; (2) 0.141 IN. MIN. TO 0.171 IN. MAX. DIA. MTG HOLES SPACED 1.172 IN. MIN. TO 1.202 IN. MAX. C TO C ALONG LENGTH; (8) 0.045 IN. MIN. TO 0.075 IN. MAX. DIA. MTG HOLES SPACED 40.0 DEG. APART ON A 0.250 IN. RADIUS; TEMPERATURE RANGE NEG 60.0 DEG. C TO 180.0 DEG. C IN. 2 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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