PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HD4020-I2-A0-0EDehydrator Unit,nonreactivating

Air Products and Pumps Inc · NSN 4440-01-723-4127 · FSC 4440 · No Item Name Available
Verified by PartsTable
NSN 4440-01-723-4127 — this item is cataloged by the U.S. Government under National Stock Number 4440-01-723-4127. Primary manufacturer part number: HD4020-I2-A0-0E.
Features
  • Dehydrator Unit,nonreactivating — FSC 4440
  • Body Overall Height: 8.53 INCHES NOMINAL IN
  • Body Overall Diameter: 6.06 INCHES NOMINAL IN
  • Body Overall Length: 42.0 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: Air Products and Pumps Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Dehydrator Unit,nonreactivating, cataloged under National Stock Number 4440-01-723-4127, is classified within Federal Supply Class 4440 (No Item Name Available) of the Furnace, Steam, Drying, Nuclear Reactors group. The primary manufacturer of record is Air Products and Pumps Inc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4440-01-723-4127
Primary Part NumberHD4020-I2-A0-0E
Item NameDehydrator Unit,nonreactivating
FSC / FSG4440 / 44 — No Item Name Available
ManufacturerAir Products and Pumps Inc
StatusACTIVE
Body Overall Height8.53 INCHES NOMINAL IN
Body Overall Diameter6.06 INCHES NOMINAL IN
Body Overall Length42.0 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5930-00-226-6404106991 INTERCHANGEABLE
Switch,push
Cincinnati Machine Co
5950-00-471-626910699-1 INTERCHANGEABLE
Transformer,audio Frequency
Drs Technologies Canada Ltd
4935-00-978-9767 INTERCHANGEABLE
Screen
5895-01-248-42891069-9-1 INTERCHANGEABLE
Panel,indicator
Elliott Machine Works Inc
6220-01-466-43461-0699-1 INTERCHANGEABLE
Panel,indicating,light Transmitt
Cmp Display Systems, Inc.
Cross-Reference Index
Part NumberManufacturer
HD4020-I2-A0-0E PRIMARY Air Products and Pumps Inc (USA)
106991 PRIMARY Air Products and Pumps Inc (USA)
Related Parts
5930-00-226-6404INTERCHANGEABLE
SWITCH,PUSH
106991
5950-00-471-6269INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
10699-1
4935-00-978-9767INTERCHANGEABLE
SCREEN
5895-01-248-4289INTERCHANGEABLE
PANEL,INDICATOR
1069-9-1
6220-01-466-4346INTERCHANGEABLE
PANEL,INDICATING,LIGHT TRANSMITT
1-0699-1

Frequently Asked Questions

What is NSN 4440-01-723-4127?

NSN 4440-01-723-4127 is a Dehydrator Unit,nonreactivating, manufactured by Air Products and Pumps Inc, classified under FSC 4440 (No Item Name Available). Status: active.

What are the part numbers for NSN 4440-01-723-4127?

NSN 4440-01-723-4127 has 2 cross-referenced part numbers: HD4020-I2-A0-0E (Air Products and Pumps Inc), 106991 (Air Products and Pumps Inc).

What NSN replaces 4440-01-723-4127?

There are 5 known substitutes for 4440-01-723-4127: 5930-00-226-6404, 5950-00-471-6269, 4935-00-978-9767 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of HD4020-I2-A0-0E?

Key specifications for HD4020-I2-A0-0E: Special Features: WITH THREE 1 INCH FLARE CONNECTIONS IN; Body Overall Height: 8.53 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: HIGH PRESSURE MEMBRANE DRYER CONNECTIONS; Body Overall Diameter: 6.06 INCHES NOMINAL IN. 5 total characteristics are documented in the Federal Logistics Information System.

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