257509B

View detailed technical data, stock status, and sourcing information for: 257509B
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Federal Supply Group

Instruments and Laboratory Equipment

Federal Supply Classification

6680 Mechanical Motion Measuring Instruments, Liquid Level and Liquid and Gas Flow

National Stock Number

6680-00-120-4891

Item Name Code

03175

Assigment Date

12/29/1967 (58 years ago)

An item so designed to have a portion or all of its body transparent to permit the visual examination of the amount of liquid in a pressure vessel, boiler, evaporator, still, processing tank, reservoir, pipe tubing line, and the like, and/or to determine the flow to a lubricated part. It may also be provided with an element that changes colors to indicate changes in moisture content. The item may have a means for refilling. Excludes:indicator, liquid quantity and indicator, rate of flow.

clear window data furnishing method, oil media for which designed, liquid level furnished data, d2n2 systems end item identification

Product Characteristics

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

End Item Identification: d2n2 systems
Furnished Data: liquid level
Data Furnishing Method: clear window
Media For Which Designed: oil

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
257509B	Liquid Sight Indicator
552592	Liquid Sight Indicator
MK2528	Liquid Sight Indicator

FAQs

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

What is the FSCG of the NSN 6680-00-120-4891?

The FSCG of the NSN 6680-00-120-4891 is 6680

Does the NSN 6680-00-120-4891 have a Schedule B code assigned?

Yes, the Schedule B code is 9026107000

Does NSN 6680-00-120-4891 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 6680-00-120-4891 contain precious materials?

Item does not contain precious metal.

Does NSN 6680-00-120-4891 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 6680-00-120-4891 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Fri, Dec 29, 1967