NSN 6680-00-821-5630, 6680008215630
TACHOMETER,MECHANICAL,FIXED MOUN

Federal Supply Classification: FSC 6680 - Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
National Item Identification Number: NIIN 008215630
Codification Country: United States
Item Name Code: INC 07115
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS^® Summary

National Stock Number 6680-00-821-5630

National Stock Number (NSN) 6680-00-821-5630, or NIIN 008215630, (tachometer,mechanical,fixed moun) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 2 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

This NSN is assigned to Item Name Code (INC) 07115. [A TACHOMETER THAT IS DRIVEN THROUGH THE MEDIA OF A MECHANICAL CONNECTION AND INCLUDES PROVISIONS FOR FIXED MOUNTING.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 6680008215630 contains an unknown precious metal.

This information was last updated on Aug 01, 2025.

Technical Characteristics

OPERATING RANGE: (ANBG) +0.0/+2500.0 REVOLUTIONS PER MINUTE
SCALE MEASUREMENT UNIT: (BGPQ) RPM AND HOURS
GRADUATION UNIT: (ANBJ) 1 HR OPERATION
DRIVE CONNECTION TYPE: (AAYX) FLEXIBLE
AHEAD-ASTERN SEMAPHORE: (BGPJ) NOT PROVIDED
CASE SHAPE: (ANRX) ROUND
DIAL BACKGROUND COLOR: (ARCG) BLACK
DIAL ILLUMINATION: (ASTK) NOT PROVIDED
DIAL QUANTITY: (AQKC) 1
GRADUATION UNIT: (ANBJ) 1.0 HOURS OPERATED
MAJOR GRADUATION COLOR: (AQPS) WHITE
MATERIAL: (MATT) ALUMINUM CASE
MINOR GRADUATION COLOR: (AQPT) WHITE
MOUNTING FEATURE TYPE: (AHGJ) FLUSH
MOUNTING TYPE: (AAXX) PANEL
OPERATING RANGE: (ANBG) +0.0 TO 2500.0 REVOLUTIONS PER MINUTE
OVERALL DEPTH: (ABFY) 2.219 INCHES NOMINAL
OVERALL DIAMETER: (ADAV) 3.375 INCHES NOMINAL
POINTER COLOR: (ASSS) WHITE
POINTER MOVEMENT DIRECTION: (BGPC) CLOCKWISE
POINTER QUANTITY: (ASPC) 1
SCALE MEASUREMENT RANGE: (ANSZ) +0.0 TO 25.0
SCALE MEASUREMENT UNIT: (BGPQ) REVOLUTIONS PER MINUTE AND REVOLUTIONS PER HOUR
SCALE QUANTITY: (APSJ) 1
SCALE SMALLEST INCREMENT: (AWAG) 50.0 REVOLUTIONS PER MINUTE
SHAFT ROTATION DIRECTION: (AKCT) COUNTERCLOCKWISE
TOTALIZING MECHANISM CALIBRATION: (BGPH) HOURS OPERATED
TOTALIZING MECHANISM: (BGPG) PROVIDED
UNABLE TO DECODE: (ADTV) UNABLE TO DECODE
UNABLE TO DECODE: (BGPD) UNABLE TO DECODE
UNIT TYPE: (APQB) MAGNETIC
CASE MATERIAL: (ADTV) ALUMINUM
DRIVEN SPEED TO INDICATED SPEED MINIMUM RATIO: (BGPD) 1 TO 2
SCALE MEASUREMENT RANGE: (ANSZ) -0.0/+25.0
III UNIT TYPE: (APQB) MAGNETIC