PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

44254-1021Cooler,fluid,industrial

Allied Defense Industries, Llc Dba Ams Distribution · NSN 4420-01-275-9019 · FSC 4420 · No Item Name Available
Verified by PartsTable
NSN 4420-01-275-9019 — this item is cataloged by the U.S. Government under National Stock Number 4420-01-275-9019. Primary manufacturer part number: 44254-1021.
Features
  • Cooler,fluid,industrial — FSC 4420
  • 5 verified cross-references
  • Primary manufacturer: Allied Defense Industries, Llc Dba Ams Distribution
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cooler,fluid,industrial, cataloged under National Stock Number 4420-01-275-9019, 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 Allied Defense Industries, Llc Dba Ams Distribution. This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 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)
ManufacturersBritish Aerospace Inc Military Support Div (CAGE 56387); Irl Thermal Systems Ltd (CAGE U1841); Allied Defense Industries, Llc Dba Ams Distribution (CAGE 0GD25)
Technical Specifications
ParameterValue
NSN4420-01-275-9019
Primary Part Number44254-1021
Item NameCooler,fluid,industrial
FSC / FSG4420 / 44 — No Item Name Available
ManufacturerAllied Defense Industries, Llc Dba Ams Distribution
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5330-00-037-767018268 INTERCHANGEABLE
Retainer,packing
Hydro-Aire Aerospace Corp
3110-00-156-3502135-0000 INTERCHANGEABLE
Bearing,ball,annular
Empire Generator Corporation
1680-00-157-1039325701 PIECE 5 INTERCHANGEABLE
Filter,aircraft Instruments
Naval Sea Systems Command
7510-00-264-461200073 INTERCHANGEABLE
Pencil
Dixon Ticonderoga Co
5935-00-280-2967RSKM7-4-31SL INTERCHANGEABLE
Connector,receptacle,electrical
Itt Cannon Llc
5305-00-954-2728MS35190-255 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4820-01-012-765218268 INTERCHANGEABLE
Valve,globe
Circor Aerospace, Inc. Dba Circor Aerospace Inc
Cross-Reference Index
Part NumberManufacturer
1009677 British Aerospace Inc Military Support Div (USA)
1009677 Irl Thermal Systems Ltd (GBR)
44254-1021 PRIMARY Allied Defense Industries, Llc Dba Ams Distribution (USA)
44254-1021 Irl Thermal Systems Ltd (GBR)
18268 Irl Thermal Systems Ltd (GBR)
Related Parts
5330-00-037-7670INTERCHANGEABLE
RETAINER,PACKING
18268
3110-00-156-3502INTERCHANGEABLE
BEARING,BALL,ANNULAR
135-0000
1680-00-157-1039INTERCHANGEABLE
FILTER,AIRCRAFT INSTRUMENTS
325701 PIECE 5
7510-00-264-4612INTERCHANGEABLE
PENCIL
00073
5935-00-280-2967INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
RSKM7-4-31SL
5305-00-954-2728INTERCHANGEABLE
SCREW,MACHINE
MS35190-255
4820-01-012-7652INTERCHANGEABLE
VALVE,GLOBE
18268

Frequently Asked Questions

What is NSN 4420-01-275-9019?

NSN 4420-01-275-9019 is a Cooler,fluid,industrial, manufactured by Allied Defense Industries, Llc Dba Ams Distribution, classified under FSC 4420 (No Item Name Available). Status: active.

What are the part numbers for NSN 4420-01-275-9019?

NSN 4420-01-275-9019 has 5 cross-referenced part numbers: 1009677 (British Aerospace Inc Military Support Div), 1009677 (Irl Thermal Systems Ltd), 44254-1021 (Allied Defense Industries, Llc Dba Ams Distribution), 44254-1021 (Irl Thermal Systems Ltd), 18268 (Irl Thermal Systems Ltd).

What NSN replaces 4420-01-275-9019?

There are 7 known substitutes for 4420-01-275-9019: 5330-00-037-7670, 3110-00-156-3502, 1680-00-157-1039 and 4 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com