ADD

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Federal Supply Group

Instruments and Laboratory Equipment

Federal Supply Classification

6625 Electrical and Electronic Properties Measuring and Testing Instruments

National Stock Number

6625-00-649-4178

Item Name Code

16450

Assigment Date

01/01/1963 (63 years ago)

An instrument which measures electric current and is calibrated and marked in amperes 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. For current detecting type of devices, see galvanometer.

25 single indicator single range scale division quantity, 2.438 inches nominal mounting bolt circle diameter, 1.781 inches nominal overall length, dc circuit current for which designed, 2.688 inches nominal overall diameter

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Circuit Current For Which Designed: dc
Overall Length: 1.781 inches nominal
Scale Division Quantity: 25 single indicator single range
Overall Diameter: 2.688 inches nominal
Mounting Bolt Circle Diameter: 2.438 inches nominal
Installation Design: panel
Mounting Arrangement Style: three hole/stud bolt circle
Dial Scale Marking Color: black single indicator single range
Accuracy In Percent: -1.5 to 1.5 at full scale single indicator single range
Meter Depth Behind Mounting Flange: 1.406 inches nominal
Meter Body Diameter Behind Mounting Flange: 2.062 inches nominal
Background Color: white single indicator single range
Mounting Facility Type And Quantity: 3 flange
Measurement Range: +0.0 to 25.0 microamperes, dc single indicator single range
Circuit Attachment Method And Quantity: 2 solderless lug
Special Features: hermetically sealed
Style Designator: round flush mtg

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
6625-00-648-8324	No Name Available	03/21/1967

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
56HSR	Ammeter
ADD	Ammeter

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 6625-00-649-4178?

The FSCG of the NSN 6625-00-649-4178 is 6625

Does the NSN 6625-00-649-4178 have a Schedule B code assigned?

Yes, the Schedule B code is 9030908030

Does NSN 6625-00-649-4178 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 6625-00-649-4178 contain precious materials?

Precious metal content is unknown

Does NSN 6625-00-649-4178 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 6625-00-649-4178 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963