Product Details | PLUG HUMIDITY INDICATOR

6685-01-484-8553 An item which uses the changing color of a desiccant in the presence of moisture to indicate humidity. The desiccant is in a plug through which the color may be observed and compared with a chart.

Part Alternates: 3905, 3905CG504, 3905C-G504, 3905G504, 3905-G504, 7242 ITEM NO. 4, 7242ITEMNO4, 6685-01-484-8553, 01-484-8553, 6685014848553, 014848553

Instruments and Laboratory Equipment | Pressure, Temperature, and Humidity Measuring and Controlling Instruments

Supply Group (FSG) NSN Assign. NIIN
66 09-MAY-01 01-484-8553

Drawings & Photos | NSN 6685-01-484-8553


Demand History | NSN 6685-01-484-8553

Part Number Request Date QTY Origin
3905 2014-07-191 20 United States
3905 2011-12-346 2
3905 2011-11-315 2
3905 2011-11-306 2
3905 2011-10-284 2
3905 2011-10-284 2
3905 2011-09-271 10
3905 2011-09-249 10

Cross Reference | NSN 6685-01-484-8553

Part Number Cage Code Manufacturer
3905 22501 HOWELL LABORATORIES, INC.
3905-G504 22501 HOWELL LABORATORIES, INC.
3905C-G504 22501 HOWELL LABORATORIES, INC.
7242 ITEM NO. 4 22501 HOWELL LABORATORIES, INC.

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Technical Data | NSN 6685-01-484-8553

Characteristic Specifications
MATERIAL STEEL
STYLE DESIGNATOR C3 ENGINE CYLINDER PLUG
OVERALL LENGTH 1.281 INCHES NOMINAL
WIDTH ACROSS FLATS 1.000 INCHES NOMINAL
DESICCANT SPOT HUMIDITY PERCENTAGE ANY ACCEPTABLE
END CONNECTION TYPE THREADED EXTERNAL, GASKET SEAL SINGLE END
III END ITEM IDENTIFICATION MONITOR, DEWPOINT

Restrictions/Controls & Freight Information | NSN 6685-01-484-8553

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodePThere is no information in the HMIS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information