PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4170Heat Sink-Insulator

Boyd Laconia Llc · NSN 5999-01-333-4950 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-333-4950 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-333-4950. Primary manufacturer part number: 4170.
Features
  • Heat Sink-Insulator — FSC 5999
  • 3 verified cross-references
  • Primary manufacturer: Boyd Laconia Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heat Sink-Insulator, cataloged under National Stock Number 5999-01-333-4950, 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 Boyd Laconia Llc. 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
NSN5999-01-333-4950
Primary Part Number4170
Item NameHeat Sink-Insulator
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerBoyd Laconia Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality Code1
Unit of IssueEA
SMR CodeDZ
Weight0.0250 lbs
Cube0.0012 cu ft
Verified Substitutes 12
5996-00-112-45884170 INTERCHANGEABLE
Amplifier,magnetic
Spang & Company Dba Magnetics Division
5940-00-204-82254-170 INTERCHANGEABLE
Terminal Board
Cinch Connectivity Solutions Inc.
5310-00-272-7310G-88-137 INTERCHANGEABLE
Washer,flat
M.t. Davidson Company
4730-00-391-4598 INTERCHANGEABLE
Sleeve,hose Connector
3020-00-480-31384170 INTERCHANGEABLE
Gear,spur
Curtiss-Wright Controls, Inc. Dba Curtiss Wright Div Actuation Division
5950-00-645-6403 INTERCHANGEABLE
Transformer,audio Frequency
4530-00-736-9228 INTERCHANGEABLE
Plate,sprayer,oil Burner Atomize
5930-00-924-2002 INTERCHANGEABLE
Switch,speed
5360-01-137-11584170 INTERCHANGEABLE
Spring
Columbia Machine Inc
6640-01-543-26184170 INTERCHANGEABLE
Tube,capillary,micro Pipet
Matrix Technologies L.l.c. Dba Thermo Fisher Scientific
Cross-Reference Index
Part NumberManufacturer
M50-0002-220 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
4170 Thermalloy Co Inc (USA)
4170 PRIMARY Boyd Laconia Llc (USA)
Related Parts
5996-00-112-4588INTERCHANGEABLE
AMPLIFIER,MAGNETIC
4170
5940-00-204-8225INTERCHANGEABLE
TERMINAL BOARD
4-170
5310-00-272-7310INTERCHANGEABLE
WASHER,FLAT
G-88-137
4730-00-391-4598INTERCHANGEABLE
SLEEVE,HOSE CONNECTOR
3020-00-480-3138INTERCHANGEABLE
GEAR,SPUR
4170
5950-00-645-6403INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
4530-00-736-9228INTERCHANGEABLE
PLATE,SPRAYER,OIL BURNER ATOMIZE
5930-00-924-2002INTERCHANGEABLE
SWITCH,SPEED
5360-01-137-1158INTERCHANGEABLE
SPRING
4170
6640-01-543-2618INTERCHANGEABLE
TUBE,CAPILLARY,MICRO PIPET
4170
2910-01-609-6250INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
4170 13010
5325-01-643-0408INTERCHANGEABLE
FASTENER TAPE,HOOK AND PILE
4170

Frequently Asked Questions

What is NSN 5999-01-333-4950?

NSN 5999-01-333-4950 is a Heat Sink-Insulator, manufactured by Boyd Laconia Llc, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-333-4950?

NSN 5999-01-333-4950 has 3 cross-referenced part numbers: M50-0002-220 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 4170 (Thermalloy Co Inc), 4170 (Boyd Laconia Llc).

What NSN replaces 5999-01-333-4950?

There are 12 known substitutes for 5999-01-333-4950: 5996-00-112-4588, 5940-00-204-8225, 5310-00-272-7310 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4170?

Key specifications for 4170: Special Features: MATERIAL ALUMINUM OXIDE; 0.755 IN. MIN. TO 0.765 IN. MAX. LG; 0.545 IN. MIN. TO 0.555 IN. MAX. W; 0.057 IN. MIN. TO 0.067 IN. MAX. THK; (1) 0.140 IN. MIN. TO 0.150 IN. MAX. DIA. MTG HOLE IN; End Item Identification: 1230-01-319-3163 DEFENSE SYSTEM,AIR; Overall Length: 0.755 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN; Overall Width: 0.545 INCHES MINIMUM AND 0.555 INCHES MAXIMUM IN. 10 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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