PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HYD-SG-40Desiccant Container,dehumidifier

Wallace Williams Corporation Dba Wallace Williams Corp · NSN 4440-01-581-8393 · FSC 4440 · No Item Name Available
Verified by PartsTable
NSN 4440-01-581-8393 — this item is cataloged by the U.S. Government under National Stock Number 4440-01-581-8393. Primary manufacturer part number: HYD-SG-40.
Features
  • Desiccant Container,dehumidifier — FSC 4440
  • Desiccant: INCLUDED
  • Desiccant Material: BLUE INDICATING SILICA GELL
  • Material: ALUMINUM CONTAINER
  • 3 verified cross-references
  • Primary manufacturer: Wallace Williams Corporation Dba Wallace Williams Corp
Applications
  • Applications requiring Aluminum Container construction
General Description

The Desiccant Container,dehumidifier, cataloged under National Stock Number 4440-01-581-8393, 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 Wallace Williams Corporation Dba Wallace Williams Corp. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4440-01-581-8393
Primary Part NumberHYD-SG-40
Item NameDesiccant Container,dehumidifier
FSC / FSG4440 / 44 — No Item Name Available
ManufacturerWallace Williams Corporation Dba Wallace Williams Corp
StatusACTIVE
DesiccantINCLUDED
Desiccant MaterialBLUE INDICATING SILICA GELL
MaterialALUMINUM CONTAINER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5962-00-402-9348C4555-1 INTERCHANGEABLE
Microcircuit,digital
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
5940-00-961-0480KVS28 INTERCHANGEABLE
Splice,conductor
Burndy Llc
5905-01-159-7312SG-40 INTERCHANGEABLE
Resistor,thermal
Rtie Holdings Llc
Cross-Reference Index
Part NumberManufacturer
HYD-SG-40 PRIMARY Wallace Williams Corporation Dba Wallace Williams Corp (USA)
SG-40 PRIMARY General Atomics Dba General Atomics Corp (USA)
SG-40 PRIMARY Wallace Williams Corporation Dba Wallace Williams Corp (USA)
Related Parts
5962-00-402-9348INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
C4555-1
5940-00-961-0480INTERCHANGEABLE
SPLICE,CONDUCTOR
KVS28
5905-01-159-7312INTERCHANGEABLE
RESISTOR,THERMAL
SG-40

Frequently Asked Questions

What is NSN 4440-01-581-8393?

NSN 4440-01-581-8393 is a Desiccant Container,dehumidifier, manufactured by Wallace Williams Corporation Dba Wallace Williams Corp, classified under FSC 4440 (No Item Name Available). Status: active.

What are the part numbers for NSN 4440-01-581-8393?

NSN 4440-01-581-8393 has 3 cross-referenced part numbers: HYD-SG-40 (Wallace Williams Corporation Dba Wallace Williams Corp), SG-40 (General Atomics Dba General Atomics Corp), SG-40 (Wallace Williams Corporation Dba Wallace Williams Corp).

What NSN replaces 4440-01-581-8393?

There are 3 known substitutes for 4440-01-581-8393: 5962-00-402-9348, 5940-00-961-0480, 5905-01-159-7312. Verify interchangeability with system specifications before substitution.

What are the specifications of HYD-SG-40?

Key specifications for HYD-SG-40: Desiccant: INCLUDED; Special Features: MINI CANISTER CONTAINING 40 GRAMS OF SILICA GEL IN ALUMINUM CANISTER; P ROTECTS 3 CUBIC FEET OF ENCLOSED SPACE G; Desiccant Material: BLUE INDICATING SILICA GELL; Material: ALUMINUM CONTAINER. 7 total characteristics are documented in the Federal Logistics Information System.

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