PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4814Humidity Element,resistance

Newport Scientific Inc Hygrodynamic Products Div · NSN 6685-01-436-8991 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-436-8991 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-436-8991. Primary manufacturer part number: 4814.
Features
  • Humidity Element,resistance — FSC 6685
  • Media for Which Designed: AIR AND MOISTURE
  • 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 Humidity Element,resistance, cataloged under National Stock Number 6685-01-436-8991, 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-01-436-8991
Primary Part Number4814
Item NameHumidity Element,resistance
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerNewport Scientific Inc Hygrodynamic Products Div
StatusACTIVE
Media for Which DesignedAIR AND MOISTURE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5940-00-143-4771MS25036-103 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
5905-00-232-18481960919-1 INTERCHANGEABLE
Resistor,electrical
Honeywell Intl Inc Defense Avionics Systems
5999-00-437-6493531587-1 INTERCHANGEABLE
Delay Line
Raytheon Company Dba Raytheon
5330-00-465-556502420481400 INTERCHANGEABLE
Seal,plain Encased
Freudenberg-Nok General Partnership Dba Fredenberg-Nok Seals Division
5310-00-489-7159 INTERCHANGEABLE
Locknut
5310-00-637-25114814 INTERCHANGEABLE
Washer,lock
Telemechanics Inc
4820-00-825-38500548-A01-KM0100 INTERCHANGEABLE
Valve,safety Relief
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
5905-01-186-6831 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
6240-01-187-68785S5149 INTERCHANGEABLE
Lamp,incandescent
Caterpillar Inc Div Caterpillar Defense
Cross-Reference Index
Part NumberManufacturer
4814 PRIMARY Newport Scientific Inc Hygrodynamic Products Div (USA)
Related Parts
5940-00-143-4771INTERCHANGEABLE
TERMINAL,LUG
MS25036-103
5905-00-232-1848INTERCHANGEABLE
RESISTOR,ELECTRICAL
1960919-1
5999-00-437-6493INTERCHANGEABLE
DELAY LINE
531587-1
5330-00-465-5565INTERCHANGEABLE
SEAL,PLAIN ENCASED
02420481400
5310-00-489-7159INTERCHANGEABLE
LOCKNUT
5310-00-637-2511INTERCHANGEABLE
WASHER,LOCK
4814
4820-00-825-3850INTERCHANGEABLE
VALVE,SAFETY RELIEF
0548-A01-KM0100
5905-01-186-6831INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
6240-01-187-6878INTERCHANGEABLE
LAMP,INCANDESCENT
5S5149

Frequently Asked Questions

What is NSN 6685-01-436-8991?

NSN 6685-01-436-8991 is a Humidity Element,resistance, 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 6685-01-436-8991?

NSN 6685-01-436-8991 has 1 cross-referenced part number: 4814 (Newport Scientific Inc Hygrodynamic Products Div).

What NSN replaces 6685-01-436-8991?

There are 9 known substitutes for 6685-01-436-8991: 5940-00-143-4771, 5905-00-232-1848, 5999-00-437-6493 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4814?

Key specifications for 4814: Media for Which Designed: AIR AND MOISTURE; Special Features: CLASS A ACCURACY PORM 1 PCT; TRANSDUCER W/BIFILAR PALLIDIUM WIRE WINDING; POLYSTYRENE CORE; THERMISTOR IN TH-3 SENSOR; REL HUMID RANGE 3 TO 10 PCT AT 80 DEG F; BLACK; HI RESOLUTION; TEMP RANGE 20 TO 140 DEG F DEGF. 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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