PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

70228Heat Sink,electrical-Electronic

Muirhead Aerospace Ltd · NSN 5999-01-179-4731 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-179-4731 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-179-4731. Primary manufacturer part number: 70228.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • 3 verified cross-references
  • Primary manufacturer: Muirhead Aerospace Ltd
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 5999-01-179-4731, 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 Muirhead Aerospace Ltd. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Catalog Facts
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 — No Item Name Available (FSG 59)
ManufacturersJednolity Indeks Materialowy - Uniform Material Index (CAGE 9009H); Muirhead Aerospace Ltd (CAGE K0624)
Technical Specifications
ParameterValue
NSN5999-01-179-4731
Primary Part Number70228
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerMuirhead Aerospace Ltd
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 6
4720-00-269-655920145 INTERCHANGEABLE
Hose,preformed
Gates Corporation
5998-00-275-509670228 INTERCHANGEABLE
Circuit Card Assembly
Alliant Techsystems Operations Llc Div Defense Electronic Systems
3030-00-814-6936240L075 INTERCHANGEABLE
Belt,positive Drive
Maurey Mfg Co
4210-01-239-373070228 INTERCHANGEABLE
Indicator,fill Cap,extinguisher
Tyco Fire Products Lp
3110-01-325-575570228 INTERCHANGEABLE
Bearing,ball,annular
Ingersoll-Rand Co Material Handling Div
6645-01-583-651970228-1 INTERCHANGEABLE
Meter,time Totalizing
Applied Companies
Cross-Reference Index
Part NumberManufacturer
5961PL0727164 Jednolity Indeks Materialowy - Uniform Material Index (POL)
70228 PRIMARY Muirhead Aerospace Ltd (GBR)
PL70280 ITEM 1 Muirhead Aerospace Ltd (GBR)
Related Parts
4720-00-269-6559INTERCHANGEABLE
HOSE,PREFORMED
20145
5998-00-275-5096INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
70228
3030-00-814-6936INTERCHANGEABLE
BELT,POSITIVE DRIVE
240L075
4210-01-239-3730INTERCHANGEABLE
INDICATOR,FILL CAP,EXTINGUISHER
70228
3110-01-325-5755INTERCHANGEABLE
BEARING,BALL,ANNULAR
70228
6645-01-583-6519INTERCHANGEABLE
METER,TIME TOTALIZING
70228-1

Frequently Asked Questions

What is NSN 5999-01-179-4731?

NSN 5999-01-179-4731 is a Heat Sink,electrical-Electronic, manufactured by Muirhead Aerospace Ltd, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-179-4731?

NSN 5999-01-179-4731 has 3 cross-referenced part numbers: 5961PL0727164 (Jednolity Indeks Materialowy - Uniform Material Index), 70228 (Muirhead Aerospace Ltd), PL70280 ITEM 1 (Muirhead Aerospace Ltd).

What NSN replaces 5999-01-179-4731?

There are 6 known substitutes for 5999-01-179-4731: 4720-00-269-6559, 5998-00-275-5096, 3030-00-814-6936 and 3 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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