Model: AN/USM-21

Ohmmeter

Properties:

Overall Length
8.375 inches
Overall Height
5.750 inches
Overall Width
7.500 inches
Furnished Items And Quantity
Test leads 2; prods 2; battery 1; carrying case 1
Sensitivity Rating
2.0 milliamperes and 10.0 millivolts
Dial Scale Marking Color
Black single indicator single range
Accuracy In Percent
-1.0/+1.0 at full scale single indicator single range
Background Color
White single indicator single range
Power Source
Internal
Measurement Range
+0.1/+10.0 ohms single indicator 3rd range
Measurement Range
+1.0/+100.0 milliohms single indicator 1st range
Measurement Range
+10.0/+1000.0 milliohms single indicator 2nd range
Scale Selection Method
Switch
Features Provided
Portable
Movement Suspension Method
Jewel pivot base
Operating Voltage Rating In Volts
1.5 dc
Style Designator
Rectangular or square
NSN
6625-00-669-2360
Part Number
AN/USM-21
Description
Ohmmeter
CAGE
80058

An instrument which measures electrical resistance and is calibrated in ohms or any multiple and/or submultiples thereof. The value may be expressed by means of a pointer and calibrated dial or a digital readout display. See also test set, insulation bbeakdown.

Part AN/USM-21 NSN 6625-00-669-2360

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00494
FIIG:
A310A0
Concept No.:
App. Key:
A
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:
RH
CRITL:
F

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
12.5 X 12.5 X 8.5
Paclk Weight:
9.0000lbs
Item Weight:
7.0000lbs
Item Dim:
008800730053
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
F000004E37
SPI Rev.:
SPC Mkg:
19
LVL_A:
LVL_B:

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
136740
UFC:
68820
LTL:
100.0
LCL:
--
WCC:
657
TCC:
Z
SHC:
Q
ACC:
Equipment for Aircraft

End Items End applications NSN 6625-00-669-2360 is a component of

  • Avionics Support Equipment And Parts
  • 002446068
  • Displacement Gyroscope

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Schedule B and Export
  • Schedule B: 9030908030
  • SITC: 87479
  • End Use: Measuring, testing, control instruments
  • NAICS: 334515
  • USDA: 1

Freight Class: Parts and accessories of articles of schedule b subheading 9030.39

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