NSN 6680-00-542-1273, 6680005421273
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 005421273
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: In Stock Qualified Suppliers: Currently qualifying suppliers

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DLMS^® Summary

National Stock Number 6680-00-542-1273

National Stock Number (NSN) 6680-00-542-1273, or NIIN 005421273, (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 3 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier 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 6680005421273 contains an unknown precious metal.

This information was last updated on Aug 01, 2025.

Technical Characteristics

SCALE MEASUREMENT RANGE: (ANSZ) +0.0/+45.0
III UNIT TYPE: (APQB) MAGNETIC
CASE MATERIAL: (ADTV) STEEL, STAINLESS
OPERATING RANGE: (ANBG) +0.0/+4500.0 REVOLUTIONS PER MINUTE
DRIVEN SPEED TO INDICATED SPEED MINIMUM RATIO: (BGPD) 1 TO 2
GRADUATION UNIT: (ANBJ) 1 HR OPERATION
SCALE MEASUREMENT UNIT: (BGPQ) RPM
AHEAD-ASTERN SEMAPHORE: (BGPJ) NOT PROVIDED
CASE SHAPE: (ANRX) ROUND
DIAL BACKGROUND COLOR: (ARCG) BLACK
DIAL ILLUMINATION: (ASTK) NOT PROVIDED
DIAL QUANTITY: (AQKC) 1
DRIVE CONNECTION TYPE: (AAYX) FLEXIBLE
GRADUATION UNIT: (ANBJ) 1.0 HOURS OPERATED
MAJOR GRADUATION COLOR: (AQPS) WHITE
MINOR GRADUATION COLOR: (AQPT) WHITE
MOUNTING FEATURE TYPE: (AHGJ) FLUSH
MOUNTING TYPE: (AAXX) PANEL
OPERATING RANGE: (ANBG) +0.0 TO 4500.0 REVOLUTIONS PER MINUTE
OVERALL DEPTH: (ABFY) 2.656 INCHES NOMINAL
OVERALL DIAMETER: (ADAV) 2.843 INCHES NOMINAL
POINTER QUANTITY: (ASPC) 1
POINTER COLOR: (ASSS) WHITE
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: (ZZZY) ANSZ,BGPD,ADAV,BGPH,ABFY
SCALE MEASUREMENT RANGE: (ANSZ) +0.0 TO 45.0
SCALE MEASUREMENT UNIT: (BGPQ) REVOLUTIONS PER MINUTE
SCALE QUANTITY: (APSJ) 1
SCALE SMALLEST INCREMENT: (AWAG) 100.0 REVOLUTIONS PER MINUTE
SHAFT ROTATION DIRECTION: (AKCT) CLOCKWISE
SPECIAL FEATURES: (FEAT) HOURMETER CALIBRATED 2084 RPM EQUALS 1 HR AT 1042 RPM
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