Model: 4951-260

Electrical Frequency Meter

Properties:

Circuit Current For Which Designed
Ac
Overall Length
4.093 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
3.375 inches
Center To Center Distance Between Mounting Facilities Parallel To Width
3.375 inches
Overall Height
4.421 inches
Overall Width
4.421 inches
Mounting Hole Diameter
0.312 inches
Environmental Protection
Shock resistant and watertight
Furnished Items And Quantity
Nut 8; lockwasher 2; flat washer 10
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Four hole/stud rectangular/square
Dial Scale Marking Color
Black single indicator single range
Accuracy In Percent
-1.5/+1.5 at full scale single indicator single range
Meter Depth Behind Mounting Flange
2.816 inches
Meter Body Diameter Behind Mounting Flange
3.930 inches
Movement Type
Moving coil, permanent magnet
Background Color
White single indicator single range
Pointer Color
Black single indicator single range
Power Source
External
Mounting Facility Type And Quantity
4 screw and 4 unthreaded hole
Scale Selection Method
Terminal
Features Provided
Zero adjuster
Movement Suspension Method
Jewel pivot base
Circuit Attachment Method And Quantity
2 threaded stud
Material
Aluminum and steel
Nuclear Hardness Critical Feature
Nonhardened
Surface Treatment
Paint
Style Designator
Rectangular flush mtg
Fsc Application Data
Test set, elect. Equip.
NSN
6625-01-141-8475
Part Number
4951-260
Description
Meter,electrical Frequency
CAGE
15309

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 4951-260 NSN 6625-01-141-8475

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
4.5000lbs
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:
Q
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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