PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21444Probe,humidity-Temperature

Rdf Corporation · NSN 6685-01-511-2323 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-511-2323 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-511-2323. Primary manufacturer part number: 21444.
Features
  • Probe,humidity-Temperature — FSC 6685
  • Overall Diameter: 0.437 INCHES NOMINAL IN
  • Material: STEEL CORROSION RESISTING
  • Physical Form: RECTANGULAR
  • 5 verified cross-references
  • Primary manufacturer: Rdf Corporation
Applications
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Probe,humidity-Temperature, cataloged under National Stock Number 6685-01-511-2323, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Rdf Corporation. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-01-511-2323
Primary Part Number21444
Item NameProbe,humidity-Temperature
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerRdf Corporation
StatusACTIVE
Overall Diameter0.437 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING
Physical FormRECTANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5935-00-185-96248014762 INTERCHANGEABLE
Connector,receptacle,electrical
Us Army Aviation and Missile Command
5935-00-185-962621444 INTERCHANGEABLE
Connector,receptacle,electrical
Raytheon Company Dba Raytheon
5970-00-350-40832-144-4 INTERCHANGEABLE
Insulator,plate
Precision Aerospace Corporation Dba Precision Engine Control
3120-00-376-854221-444 INTERCHANGEABLE
Bearing,sleeve
Dresser Industries Inc Leroi Div
5330-00-599-255210512743 INTERCHANGEABLE
Packing,preformed
General Dynamics Land Systems Canadacorp
5330-01-224-300821444 INTERCHANGEABLE
Seal,nonmetallic Special Shaped
Kidde Technologies, Inc Div Kidde Aerospace and Defense
4235-01-431-999321444 INTERCHANGEABLE
Boom,spill Containment,hazardous
A.r.k. Enterprises, Inc., the
6850-01-475-24451835920 INTERCHANGEABLE
Sealer,chemical
Loctite Corp
Cross-Reference Index
Part NumberManufacturer
21444 PRIMARY Rdf Corporation (USA)
NV822152-2 Rdf Corporation (USA)
NV822203 FIND 42 Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
NV822201 FIND 294 Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
NV822152-2 Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
Related Parts
5935-00-185-9624INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
8014762
5935-00-185-9626INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
21444
5970-00-350-4083INTERCHANGEABLE
INSULATOR,PLATE
2-144-4
3120-00-376-8542INTERCHANGEABLE
BEARING,SLEEVE
21-444
5330-00-599-2552INTERCHANGEABLE
PACKING,PREFORMED
10512743
5330-01-224-3008INTERCHANGEABLE
SEAL,NONMETALLIC SPECIAL SHAPED
21444
4235-01-431-9993INTERCHANGEABLE
BOOM,SPILL CONTAINMENT,HAZARDOUS
21444
6850-01-475-2445INTERCHANGEABLE
SEALER,CHEMICAL
1835920

Frequently Asked Questions

What is NSN 6685-01-511-2323?

NSN 6685-01-511-2323 is a Probe,humidity-Temperature, manufactured by Rdf Corporation, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-511-2323?

NSN 6685-01-511-2323 has 5 cross-referenced part numbers: 21444 (Rdf Corporation), NV822152-2 (Rdf Corporation), NV822203 FIND 42 (Hamilton Sundstrand Corporation Dba Collins Aerospace), NV822201 FIND 294 (Hamilton Sundstrand Corporation Dba Collins Aerospace), NV822152-2 (Hamilton Sundstrand Corporation Dba Collins Aerospace).

What NSN replaces 6685-01-511-2323?

There are 8 known substitutes for 6685-01-511-2323: 5935-00-185-9624, 5935-00-185-9626, 5970-00-350-4083 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21444?

Key specifications for 21444: Overall Diameter: 0.437 INCHES NOMINAL IN; End Item Identification: TANK ASSY ASU; Material: STEEL CORROSION RESISTING; Overall Length: 103.000 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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