PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

172A1748Heat Sink,electrical-Electronic

General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems · NSN 5999-01-310-8495 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-310-8495 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-310-8495. Primary manufacturer part number: 172A1748.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • 3 verified cross-references
  • Primary manufacturer: General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems
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 5999-01-310-8495, 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 General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems. This item has 3 commercial cross-references from 3 manufacturers, 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.

Catalog Facts
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 — No Item Name Available (FSG 59)
ManufacturersAavid Thermalloy Llc (CAGE 30161); General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (CAGE 05606); Boyd Laconia Llc (CAGE 1N6F3)
Successor NSN6625-01-659-0963 — Sensor,current
Technical Specifications
ParameterValue
NSN5999-01-310-8495
Primary Part Number172A1748
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerGeneral Dynamics-Ots, Inc. Div Ordnance and Tactical Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-01-659-0963 (5019B)
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Verified Substitutes 4
6625-01-659-09635019B SUCCESSOR
Sensor,current
Bird Electronic Corporation Div Bird Electronic Corp
4310-00-623-8750200103J36 INTERCHANGEABLE
Connecting Rod,piston
Curtiss-Wright Electro-Mechanical Corporation Div Epd
4810-01-078-45615019B INTERCHANGEABLE
Seat,valve
Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S
5330-01-304-9505CAT. NO. 50-19B INTERCHANGEABLE
Gasket
Hose-Mccann Telephone Co, Inc
Cross-Reference Index
Part NumberManufacturer
5019B Aavid Thermalloy Llc (USA)
172A1748 PRIMARY General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems (USA)
5019B Boyd Laconia Llc (USA)
Related Parts
SUCCESSOR 6625-01-659-0963 Sensor,current · 5019B
4310-00-623-8750INTERCHANGEABLE
CONNECTING ROD,PISTON
200103J36
4810-01-078-4561INTERCHANGEABLE
SEAT,VALVE
5019B
5330-01-304-9505INTERCHANGEABLE
GASKET
CAT. NO. 50-19B

Frequently Asked Questions

What is NSN 5999-01-310-8495?

NSN 5999-01-310-8495 is a Heat Sink,electrical-Electronic, manufactured by General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-310-8495?

NSN 5999-01-310-8495 has 3 cross-referenced part numbers: 5019B (Aavid Thermalloy Llc), 172A1748 (General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems), 5019B (Boyd Laconia Llc).

What NSN replaces 5999-01-310-8495?

There are 4 known substitutes for 5999-01-310-8495: 6625-01-659-0963, 4310-00-623-8750, 4810-01-078-4561 and 1 more. Verify interchangeability with system specifications before substitution.

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