PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5505 MARK IIIDehydrator Unit,nonreactivating

Howell Laboratories Inc Dba Howell Laboratories Inc · NSN 4440-01-307-6546 · FSC 4440 · No Item Name Available
Verified by PartsTable
NSN 4440-01-307-6546 — this item is cataloged by the U.S. Government under National Stock Number 4440-01-307-6546. Primary manufacturer part number: 5505 MARK III.
Features
  • Dehydrator Unit,nonreactivating — FSC 4440
  • 3 verified cross-references
  • Primary manufacturer: Howell Laboratories Inc Dba Howell Laboratories 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 4440-01-307-6546, 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 Howell Laboratories Inc Dba Howell Laboratories Inc. This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameDehydrator Unit,nonreactivating
FSC / FSG4440 — No Item Name Available (FSG 44)
ManufacturersHowell Laboratories Inc Dba Howell Laboratories Inc (CAGE 22501)
Technical Specifications
ParameterValue
NSN4440-01-307-6546
Primary Part Number5505 MARK III
Item NameDehydrator Unit,nonreactivating
FSC / FSG4440 / 44 — No Item Name Available
ManufacturerHowell Laboratories Inc Dba Howell Laboratories Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5910-00-013-95925703 INTERCHANGEABLE
Capacitor,variable,air Dielectri
Knowles Cazenovia, Inc. Div Johanson Manufacturing
5330-00-074-25975703 INTERCHANGEABLE
Packing,preformed
L and L Fab Co Lo-Lift Pallet Truck Mfg
5975-00-098-0131 INTERCHANGEABLE
Support,electrical
5965-00-170-4827 INTERCHANGEABLE
Microphone Element
5960-00-230-5330 INTERCHANGEABLE
Electron Tube
5920-00-284-6449 INTERCHANGEABLE
Fuse,plug
5110-00-289-8659 INTERCHANGEABLE
Shears,metal Cutting,hand
2990-00-441-81051109 INTERCHANGEABLE
Muffler,exhaust
Merit Industries Inc
5835-01-130-8052 INTERCHANGEABLE
Head,magnetic
2030-01-268-9518 INTERCHANGEABLE
Cylinder Pivot Head
Cross-Reference Index
Part NumberManufacturer
5506 (CD-SHEET) Howell Laboratories Inc Dba Howell Laboratories Inc (USA)
5505 MARK III PRIMARY Howell Laboratories Inc Dba Howell Laboratories Inc (USA)
5703 Howell Laboratories Inc Dba Howell Laboratories Inc (USA)
Related Parts
5910-00-013-9592INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
5703
5330-00-074-2597INTERCHANGEABLE
PACKING,PREFORMED
5703
5975-00-098-0131INTERCHANGEABLE
SUPPORT,ELECTRICAL
5965-00-170-4827INTERCHANGEABLE
MICROPHONE ELEMENT
5960-00-230-5330INTERCHANGEABLE
ELECTRON TUBE
5920-00-284-6449INTERCHANGEABLE
FUSE,PLUG
5110-00-289-8659INTERCHANGEABLE
SHEARS,METAL CUTTING,HAND
2990-00-441-8105INTERCHANGEABLE
MUFFLER,EXHAUST
1109
5835-01-130-8052INTERCHANGEABLE
HEAD,MAGNETIC
2030-01-268-9518INTERCHANGEABLE
CYLINDER PIVOT HEAD
5310-01-297-1059INTERCHANGEABLE
NUT,PLAIN,HEXAGON

Frequently Asked Questions

What is NSN 4440-01-307-6546?

NSN 4440-01-307-6546 is a Dehydrator Unit,nonreactivating, manufactured by Howell Laboratories Inc Dba Howell Laboratories Inc, classified under FSC 4440 (No Item Name Available). Status: active.

What are the part numbers for NSN 4440-01-307-6546?

NSN 4440-01-307-6546 has 3 cross-referenced part numbers: 5506 (CD-SHEET) (Howell Laboratories Inc Dba Howell Laboratories Inc), 5505 MARK III (Howell Laboratories Inc Dba Howell Laboratories Inc), 5703 (Howell Laboratories Inc Dba Howell Laboratories Inc).

What NSN replaces 4440-01-307-6546?

There are 11 known substitutes for 4440-01-307-6546: 5910-00-013-9592, 5330-00-074-2597, 5975-00-098-0131 and 8 more. Verify interchangeability with system specifications before substitution.

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