PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

33S3-2Cooler,fluid,industrial

Ellis & Watts International, Llc · NSN 4420-01-216-9685 · FSC 4420 · No Item Name Available
Verified by PartsTable
NSN 4420-01-216-9685 — this item is cataloged by the U.S. Government under National Stock Number 4420-01-216-9685. Primary manufacturer part number: 33S3-2.
Features
  • Cooler,fluid,industrial — FSC 4420
  • 2 verified cross-references
  • Primary manufacturer: Ellis & Watts International, Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-216-9685, is classified within Federal Supply Class 4420 (No Item Name Available) of the Furnace, Steam, Drying, Nuclear Reactors group. The primary manufacturer of record is Ellis & Watts International, Llc. This item has 2 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.

Catalog Facts
Item NameCooler,fluid,industrial
FSC / FSG4420 — No Item Name Available (FSG 44)
ManufacturersEllis & Watts International, Llc (CAGE 98437); Raytheon Company Div Rmd Strategic (CAGE 05869)
Technical Specifications
ParameterValue
NSN4420-01-216-9685
Primary Part Number33S3-2
Item NameCooler,fluid,industrial
FSC / FSG4420 / 44 — No Item Name Available
ManufacturerEllis & Watts International, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5325-00-170-99105001-81 INTERCHANGEABLE
Ring,retaining
Itw Limited T/a Avery Weigh-Tronix
5995-00-764-6226CA3724L11 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc
5325-00-886-3733424955-01 INTERCHANGEABLE
Stud Assembly,turnlock Fastener
Bae Systems Controls Inc
5935-01-172-3960500-181 INTERCHANGEABLE
Socket
B.c. Systems Inc. Dba Bc Systems Inc
3439-01-507-8608500181 INTERCHANGEABLE
Solder,tin Alloy
Harris J W Co Inc Harris Welco Div
5120-01-665-5007500181 INTERCHANGEABLE
Tuning Wrench
Tri-Tec Manufacturing Llc
Cross-Reference Index
Part NumberManufacturer
33S3-2 PRIMARY Ellis & Watts International, Llc (USA)
5001-81 Raytheon Company Div Rmd Strategic (USA)
Related Parts
5325-00-170-9910INTERCHANGEABLE
RING,RETAINING
5001-81
5995-00-764-6226INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
CA3724L11
5325-00-886-3733INTERCHANGEABLE
STUD ASSEMBLY,TURNLOCK FASTENER
424955-01
5935-01-172-3960INTERCHANGEABLE
SOCKET
500-181
3439-01-507-8608INTERCHANGEABLE
SOLDER,TIN ALLOY
500181
5120-01-665-5007INTERCHANGEABLE
TUNING WRENCH
500181

Frequently Asked Questions

What is NSN 4420-01-216-9685?

NSN 4420-01-216-9685 is a Cooler,fluid,industrial, manufactured by Ellis & Watts International, Llc, classified under FSC 4420 (No Item Name Available). Status: active.

What are the part numbers for NSN 4420-01-216-9685?

NSN 4420-01-216-9685 has 2 cross-referenced part numbers: 33S3-2 (Ellis & Watts International, Llc), 5001-81 (Raytheon Company Div Rmd Strategic).

What NSN replaces 4420-01-216-9685?

There are 6 known substitutes for 4420-01-216-9685: 5325-00-170-9910, 5995-00-764-6226, 5325-00-886-3733 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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