Model: MIL-M-3971

Time Totalizing Meter

Properties:

Terminal Quantity

Terminal Type

Solder lug or stud

Mounting Type

Panel

Body Diameter

2.625 inches

Current Type

Case Material

Any acceptable

Mounting Configuration

Three 0.150 in. Diameter mtg holes on 1.580 in. Radius spaced 120 degrees apart

Indicator Type

Drum register

Voltage Rating

Between 4.0 volts and 40.0 volts

Measurement Unit

Hours

Unit Type

Mounted

Mounting Flange Diameter

3.500 inches

Hermetic Protection

Not provided

Movement Type

Electrical

Body Depth

3.000 inches

Smallest Increment Indicated

0.10

Mounting Method

Flush

Reset Feature

Not provided

Maximum Measurement

9999.90

Marking Color

White numerals for hours, black numerals for tenths

Background Color

Black background on hr wheels, white background on tenths wheel

Electrical Movement Type

Magnetic

Nondefinitive Specification/std Data

B grade and 1 type

NSN

6645-00-925-3857

Part Number

MIL-M-3971

Description

Meter,time Totalizing

CAGE

81349

An instrument that automatically measured, and cumulatively registers the total operating or idle time of any circuit, machine or system, to which it is connected. See meter, frequency and time totalizing, electrical.

Part MIL-M-3971 NSN 6645-00-925-3857

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

08066

FIIG:

T134-R

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

0.4000lbs

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

136740

UFC:

68820

LTL:

RATING VARIABLE

LCL:

WCC:

658

TCC:

SHC:

ACC:

Instruments/Radio

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Have a Question

Hours:	08:00-18:00 Eastern Standard Time
Phone:	+1 470-231-0824
Email:	Contact Form »

Schedule B and Export

Schedule B: 9106903000
SITC: 88594
End Use: Photo, service industry machinery
NAICS: 334519
USDA: 1

Freight Class: Other time of the day apparatus for measuring, recording or otherwise indicating intervals of time, nesoi