MM1VUSL4990

View detailed technical data, stock status, and sourcing information for: MM1VUSL4990
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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

6625-00-866-1891

Item Name Code

16456

Assigment Date

01/01/1962 (64 years ago)

1.750 inches nominal overall height, 1.425 inches nominal overall length, dial w/pointer indicator type, dc circuit current for which designed, 1.750 inches nominal overall width

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: 1.425 inches nominal
Overall Height: 1.750 inches nominal
Overall Width: 1.750 inches nominal
Indicator Type: dial w/pointer
Installation Design: panel
Dial Scale Marking Color: black single indicator all ranges
Accuracy In Percent: -3.0 to 3.0 at full scale single indicator all ranges
Meter Depth Behind Mounting Flange: 0.800 inches nominal
Meter Body Diameter Behind Mounting Flange: 1.500 inches nominal
Movement Type: moving coil, permanent magnet
Background Color: yellow single indicator all ranges
Pointer Color: black single indicator all ranges
Power Source: external
Mounting Facility Type And Quantity: 1 threaded body
Scale Graduation Type: nonlinear single indicator all ranges
Measurement Range: +0.0 to 100.0 percent modulation single indicator 1st range
Measurement Range: -20.0 to 3.0 voice units single indicator 2nd range
Scale Selection Method: terminal
Movement Suspension Method: jewel pivot base
Circuit Attachment Method And Quantity: 2 solder stud
Special Markings: red band from 0 to plus 1 volumn unit
Material: plastic
Nuclear Hardness Critical Feature: nonhardened
Style Designator: fan shape flush mtg
Fsc Application Data: test set,elect. equip.

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
6625-00-269-2647	No Name Available	03/17/1969
6625-00-618-2422	No Name Available	03/02/1970
6625-00-851-7816	No Name Available	02/14/1968

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
MM1VU	Audio Level Meter
MM1VUSL4960	Audio Level Meter
MM1VUSL4990	Audio Level Meter

FAQs

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

What is the FSCG of the NSN 6625-00-866-1891?

The FSCG of the NSN 6625-00-866-1891 is 6625

Does the NSN 6625-00-866-1891 have a Schedule B code assigned?

Yes, the Schedule B code is 9030908030

Does NSN 6625-00-866-1891 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 6625-00-866-1891 contain precious materials?

Precious metal content is unknown

Does NSN 6625-00-866-1891 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 6625-00-866-1891 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962