Model: TM256

Voltmeter

Special Features:

Weapon system essential

Properties:

Circuit Current For Which Designed
Dc
Dielectric Withstanding Voltage In Volts
3000.0
Overall Length
2.850 inches
Scale Division Quantity
50 single indicator single range
Mounting Stud Length
0.500 inches
Overall Diameter
3.510 inches
Environmental Protection
Cold resistant and heat resistant and shock resistant and submersible and vibration resistant and watertight
Mounting Bolt Circle Diameter
3.160 inches
End Application
Aircraft stratofortress b-52, eagle f-15, missile minuteman lgm-30, phased array warning syste (paws), ballistic missile early warning system(bmews) , support equipment aircraft t-37, t-38
Furnished Items And Quantity
Mtg hdw 3
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Three hole/stud bolt circle
Sensitivity Rating
1.0 milliamperes
Dial Scale Marking Color
Black single indicator single range
Accuracy In Percent
-2.0/+2.0 at full scale single indicator single range
Meter Depth Behind Mounting Flange
1.660 inches
Meter Body Diameter Behind Mounting Flange
2.800 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
3 threaded stud
Scale Graduation Type
Linear single indicator single range
Measurement Range
+0.0/+50.0 volts, dc single indicator single range
Mounting Stud Diameter
0.138 inches
Scale Selection Method
Terminal
Features Provided
Luminous scale marking and magnetic shield and zero adjuster
Criticality Code Justification
Feat
Movement Suspension Method
Metal pivot base
Circuit Attachment Method And Quantity
2 solder lug and 2 threaded stud
Special Markings
Sealed-do not open
Material
Steel
Surface Treatment
Enamel semigloss
Surface Treatment Specification
Mil-f-14072 military specification single treatment response
Style Designator
C1 round flush mtg
Style Designator
Round flush mtg
Test Data Document
81349-mil-m-10304 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Specification Data
81349-mil-m-10304/11 government specification
Fsc Application Data
Test set, elect. Equip.
NSN
6625-00-643-1792
Part Number
TM256
Description
Voltmeter
CAGE
30040

An instrument which measures electrical potential and is calibrated in volts or any multiple and/or submultiple thereof. The value may be expressed by means of a pointer and calibrated dial or a digital readout display.

Part TM256 NSN 6625-00-643-1792

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16449
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:
TG
CRITL:
Y

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.7000lbs
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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