PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4819Sensor,humidity

Newport Scientific Inc Hygrodynamic Products Div · NSN 6685-01-461-4574 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-461-4574 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-461-4574. Primary manufacturer part number: 4819.
Features
  • Sensor,humidity — FSC 6685
  • Color: GREEN
  • 1 verified cross-reference
  • Primary manufacturer: Newport Scientific Inc Hygrodynamic Products Div
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Sensor,humidity, cataloged under National Stock Number 6685-01-461-4574, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Newport Scientific Inc Hygrodynamic Products Div. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-01-461-4574
Primary Part Number4819
Item NameSensor,humidity
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerNewport Scientific Inc Hygrodynamic Products Div
StatusACTIVE
ColorGREEN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
1377-00-280-027230903802-1 INTERCHANGEABLE
Cartridge,aircraft Fire Extingui
Pacific Scientific Energetic Materials Co California Llc
2920-00-342-77954819 INTERCHANGEABLE
Cable Assy
Champion Aerospace Llc
2805-00-386-29071F3474 INTERCHANGEABLE
Valve,poppet,engine
Caterpillar Inc Div Caterpillar Defense
5330-00-558-0798 INTERCHANGEABLE
Gasket
5815-00-602-707904819 INTERCHANGEABLE
Arm
Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service
5905-00-989-928890J800 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
Cross-Reference Index
Part NumberManufacturer
4819 PRIMARY Newport Scientific Inc Hygrodynamic Products Div (USA)
Related Parts
1377-00-280-0272INTERCHANGEABLE
CARTRIDGE,AIRCRAFT FIRE EXTINGUI
30903802-1
2920-00-342-7795INTERCHANGEABLE
CABLE ASSY
4819
2805-00-386-2907INTERCHANGEABLE
VALVE,POPPET,ENGINE
1F3474
5330-00-558-0798INTERCHANGEABLE
GASKET
5815-00-602-7079INTERCHANGEABLE
ARM
04819
5905-00-989-9288INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
90J800

Frequently Asked Questions

What is NSN 6685-01-461-4574?

NSN 6685-01-461-4574 is a Sensor,humidity, manufactured by Newport Scientific Inc Hygrodynamic Products Div, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-461-4574?

NSN 6685-01-461-4574 has 1 cross-referenced part number: 4819 (Newport Scientific Inc Hygrodynamic Products Div).

What NSN replaces 6685-01-461-4574?

There are 6 known substitutes for 6685-01-461-4574: 1377-00-280-0272, 2920-00-342-7795, 2805-00-386-2907 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4819?

Key specifications for 4819: Special Features: RH RANGE @ 80 DEG F 41 TO 58%;ACCURACY +/- 1% RH;QUICK RESPONSE;3 SECONDS FOR 65% CHANGE; HYGROSENSOR IS TRANDSDUCER CONSISTING OF A BIFILAR WINDING OF PALLADIUM WIRE ON A POLYSTYRENE CORE COATED WITH A HYGROSCOPIC FILM DEGF; Color: GREEN. 2 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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