PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21443Probe,humidity-Temperature

Rdf Corporation · NSN 6685-01-511-2329 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-511-2329 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-511-2329. Primary manufacturer part number: 21443.
Features
  • Probe,humidity-Temperature — FSC 6685
  • Physical Form: RECTANGULAR
  • Overall Diameter: 0.250 INCHES NOMINAL IN
  • Material: STEEL CORROSION RESISTING
  • 3 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 6685-01-511-2329, 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 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-01-511-2329
Primary Part Number21443
Item NameProbe,humidity-Temperature
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerRdf Corporation
StatusACTIVE
Physical FormRECTANGULAR
Overall Diameter0.250 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4730-00-115-3864 INTERCHANGEABLE
Reducer,tube
5310-00-208-2855 INTERCHANGEABLE
Nut,plain,hexagon
3120-00-354-64061A21-443 INTERCHANGEABLE
Bearing,sleeve
Fwd Seagrave Holdings Lp
6625-00-525-048821443 INTERCHANGEABLE
Case,test Set
L3harris Technologies, Inc. Div Space and Airborne Systems
5970-00-708-87142-144-3 INTERCHANGEABLE
Insulator,plate
Precision Aerospace Corporation Dba Precision Engine Control
6665-00-761-295221443 INTERCHANGEABLE
Cord,probe,retractible
Mirion Technologies (canberra), Inc.
5998-00-848-897821443-1 INTERCHANGEABLE
Circuit Card Assembly
Rex Systems Incorporated Dba Rex Systems Inc
5945-00-945-5441 INTERCHANGEABLE
Relay,electromagnetic
8030-01-512-487821443 INTERCHANGEABLE
Sealing Compound
Loctite Corp
5365-01-601-4664 INTERCHANGEABLE
Shim
Cross-Reference Index
Part NumberManufacturer
21443 PRIMARY Rdf Corporation (USA)
NV822201 FIND 299 Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
NV822152-1 Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
Related Parts
4730-00-115-3864INTERCHANGEABLE
REDUCER,TUBE
5310-00-208-2855INTERCHANGEABLE
NUT,PLAIN,HEXAGON
3120-00-354-6406INTERCHANGEABLE
BEARING,SLEEVE
1A21-443
6625-00-525-0488INTERCHANGEABLE
CASE,TEST SET
21443
5970-00-708-8714INTERCHANGEABLE
INSULATOR,PLATE
2-144-3
6665-00-761-2952INTERCHANGEABLE
CORD,PROBE,RETRACTIBLE
21443
5998-00-848-8978INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
21443-1
5945-00-945-5441INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
8030-01-512-4878INTERCHANGEABLE
SEALING COMPOUND
21443
5365-01-601-4664INTERCHANGEABLE
SHIM

Frequently Asked Questions

What is NSN 6685-01-511-2329?

NSN 6685-01-511-2329 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 6685-01-511-2329?

NSN 6685-01-511-2329 has 3 cross-referenced part numbers: 21443 (Rdf Corporation), NV822201 FIND 299 (Hamilton Sundstrand Corporation Dba Collins Aerospace), NV822152-1 (Hamilton Sundstrand Corporation Dba Collins Aerospace).

What NSN replaces 6685-01-511-2329?

There are 10 known substitutes for 6685-01-511-2329: 4730-00-115-3864, 5310-00-208-2855, 3120-00-354-6406 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21443?

Key specifications for 21443: End Item Identification: VALVE, GLOBE; Physical Form: RECTANGULAR; Overall Diameter: 0.250 INCHES NOMINAL IN; Material: STEEL CORROSION RESISTING. 4 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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