Model: 3402875-1

Electrical Tachometer Indicator

Special Features:

Weight 2 lbs; portable instrument; derives power from the aircraft bus; instrument circuitry 100% solid state; requires no calibration; essentially drift free; at 100% rpm the displayed percent rpm presentation is updated 7 times each second; interfaces to an existing phone jack in the flight deck onboard the acft

Properties:

Width

4.000 inches

Current Type

Ac Voltage Rating

115.0 volts

Frequency Rating

400.0 hertz

Depth

3.500 inches

End Application

C-130 aircraft support

Presentation Type

Digital display

Scale Range

+66.0/+277.0 percent revolutions per minute single indicator single scale

Electrical Connection Quantity

Fuse Current Rating In Amps

1.0

Display Type

Light emitting diode

Display Digit Quantity

Accuracy Rating

0.1 percent revolutions per minute single indicator single scale

Part Name Assigned By Controlling Agency

Master percent rpm indicator

Phase

Single

Height

6.000 inches

Supplementary Features

Ia small portable instrument used to measure the rpm of each engine on the c-130 acft; the led readout presents this information as some percent of 100% rpm making it suited for engine trim applications

NSN

6620-01-394-0365

Part Number

3402875-1

Description

Indicator,electrical Tachometer

CAGE

16331

An instrument which displays, in units of revolutions per minute, the transmitted rotational speed of a shaft for a specified elapsed time.

Part 3402875-1 NSN 6620-01-394-0365

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

08260

FIIG:

A532Q0

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:

8.3 X 8.3 X 12.5

Paclk Weight:

4.4000lbs

Item Weight:

2.0000lbs

Item Dim:

006000350035

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

F000003XA2

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

061700

UFC:

34580

LTL:

RATING VARIABLE

LCL:

85.0

WCC:

72D

TCC:

SHC:

ACC:

Instruments/Radio

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Schedule B and Export

Schedule B: 9029900000
SITC: 87329
End Use: Measuring, testing, control instruments
NAICS: 334514
USDA: 1

Freight Class: Parts and accessories for revolution counters, production counters, taximeters, odometers, pedometers and the like