Model: 3681

Plug Humidity Indicator

Properties:

Thread Direction
Right-hand single end
Overall Height
2.000 inches
Width Across Flats
Between 1.240 inches and 1.260 inches
End Connection Type
Threaded internal, plain single end
Thready Qty Per Inch (tpi)
14 single end
Thread Size
0.750 inches single end
Desiccant Spot Humidity Percentage
10.0 and 20.0 and 30.0
Material
Aluminum alloy 2017 and aluminum alloy 2024
Style Designator
Plug
Thread Series Designator
Npt single end
NSN
6685-01-047-1381
Part Number
3681
Description
Indicator,humidity,plug
CAGE
00334

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 3681 NSN 6685-01-047-1381

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
08357
FIIG:
A43400
Concept No.:
App. Key:
C
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.3000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
000000
UFC:
00000
LTL:
NO RATING
LCL:
--
WCC:
653
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 9025805050
  • SITC: 87455
  • End Use: Measuring, testing, control instruments
  • NAICS: 334519
  • USDA: 1

Freight Class: Hydrometers and similar floating instruments,hygrometers and psychrometers, nesoi

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