PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

210013Heat Sink,electrical-Electronic

Ramona Research, Inc. · NSN 5999-01-645-4036 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-645-4036 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-645-4036. Primary manufacturer part number: 210013.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • 3 verified cross-references
  • Primary manufacturer: Ramona Research, Inc.
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 5999-01-645-4036, 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 Ramona Research, Inc.. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 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)
ManufacturersLockheed Martin Corporation Div Mfc (CAGE 622B7); Ramona Research, Inc. (CAGE 1V7Y7)
Technical Specifications
ParameterValue
NSN5999-01-645-4036
Primary Part Number210013
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerRamona Research, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Weight1.4000 lbs
Cube0.0564 cu ft
Verified Substitutes 7
5331-00-434-56152100-13 INTERCHANGEABLE
O-Ring
Kearflex Engineering Company
5310-00-595-72371019068-042 INTERCHANGEABLE
Washer,lock
Lexel Imaging Systems Inc
5961-00-904-5355 INTERCHANGEABLE
Semiconductor Device,diode
5330-00-994-74095L8855 INTERCHANGEABLE
Seal Ring,metal
Caterpillar Inc Div Caterpillar Defense
5310-01-193-9243 INTERCHANGEABLE
Nut,plain,hexagon
5330-01-539-1221210013 INTERCHANGEABLE
Retainer,packing
Cadillac Gage Textron Inc.
1680-01-609-93182100-13 INTERCHANGEABLE
Nrp,pushbutton B962
Honeywell International Inc. Dba Honeyweel Sensing & Controls
Cross-Reference Index
Part NumberManufacturer
AFA0025103-001 Lockheed Martin Corporation Div Mfc (USA)
210013 PRIMARY Ramona Research, Inc. (USA)
210013 Lockheed Martin Corporation Div Mfc (USA)
Related Parts
5331-00-434-5615INTERCHANGEABLE
O-RING
2100-13
5310-00-595-7237INTERCHANGEABLE
WASHER,LOCK
1019068-042
5961-00-904-5355INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5330-00-994-7409INTERCHANGEABLE
SEAL RING,METAL
5L8855
5310-01-193-9243INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5330-01-539-1221INTERCHANGEABLE
RETAINER,PACKING
210013
1680-01-609-9318INTERCHANGEABLE
NRP,PUSHBUTTON B962
2100-13

Frequently Asked Questions

What is NSN 5999-01-645-4036?

NSN 5999-01-645-4036 is a Heat Sink,electrical-Electronic, manufactured by Ramona Research, Inc., classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-645-4036?

NSN 5999-01-645-4036 has 3 cross-referenced part numbers: AFA0025103-001 (Lockheed Martin Corporation Div Mfc), 210013 (Ramona Research, Inc.), 210013 (Lockheed Martin Corporation Div Mfc).

What NSN replaces 5999-01-645-4036?

There are 7 known substitutes for 5999-01-645-4036: 5331-00-434-5615, 5310-00-595-7237, 5961-00-904-5355 and 4 more. Verify interchangeability with system specifications before substitution.

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