Model: 21FX1

Electrical Frequency Meter

Special Features:

Center freq 400hz

Properties:

Overall Length
2.328 inches
Mounting Hole Diameter
0.125 inches
Scale Division Quantity
4 single indicator single range
Overall Diameter
2.688 inches
Mounting Bolt Circle Diameter
2.440 inches
Installation Design
Panel
Register Quantity
1
Mounting Arrangement Style
Three hole/stud bolt circle
Frequency Response Range
+380.000 to 420.000 hertz
Sensitivity Rating
85.0 ohms per volt
Resonant Reed Quantity
5
Accuracy In Percent
-0.3 to 0.3 at full scale single indicator single range
Meter Depth Behind Mounting Flange
2.125 inches
Meter Body Diameter Behind Mounting Flange
2.156 inches
Movement Type
Vibrating reed
Mounting Facility Type And Quantity
3 unthreaded hole
Measurement Range
+380.0 to 420.0 hertz single indicator single range
Circuit Attachment Method And Quantity
2 threaded stud
Material
Plastic
Style Designator
C1 round flush mtg
Style Designator
Round flush mtg
NSN
6625-00-669-0732
Part Number
21FX1
Description
Meter,electrical Frequency
CAGE
31356

An instrument which measures the rate of regularly recurring variations in an electric current or voltage and is usually calibrated in hertz (cycles per second or cps). The value may be expressed by means of a pointer and calibrated dial vibrating reed or a digital read out display. For instruments which measure radio frequencies, see calibrator, frequency; and wavementer. excludes: counter electronic digital.

Part 21FX1 NSN 6625-00-669-0732

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16454
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:
U
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:
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
136740
UFC:
68820
LTL:
RATING VARIABLE
LCL:
--
WCC:
657
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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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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