PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

32121Tachometer,mechanical,fixed Moun

Napco International Llc Dba Napco International Inc · NSN 6680-00-060-7102 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-060-7102 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-060-7102. Primary manufacturer part number: 32121.
Features
  • Tachometer,mechanical,fixed Moun — FSC 6680
  • Scale Measurement Unit: REVOLUTIONS PER MINUTE
  • Unable to Decode: UNABLE TO DECODE
  • Pointer Quantity: 1
  • Overall Diameter: 3.765 INCHES NOMINAL IN
  • Dial Illumination: PROVIDED
  • Scale Smallest Increment: 100.0 REVOLUTIONS PER MINUTE
  • Ahead-Astern Semaphore: NOT PROVIDED
Applications
  • Applications requiring Steel Case construction
General Description

The Tachometer,mechanical,fixed Moun, cataloged under National Stock Number 6680-00-060-7102, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Napco International Llc Dba Napco International Inc. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6680-00-060-7102
Primary Part Number32121
Item NameTachometer,mechanical,fixed Moun
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerNapco International Llc Dba Napco International Inc
StatusCANCELLED
Scale Measurement UnitREVOLUTIONS PER MINUTE
Unable to DecodeUNABLE TO DECODE
Pointer Quantity1
Overall Diameter3.765 INCHES NOMINAL IN
Dial IlluminationPROVIDED
Scale Smallest Increment100.0 REVOLUTIONS PER MINUTE
Ahead-Astern SemaphoreNOT PROVIDED
Pointer ColorWHITE
Scale Measurement Range+0.0 TO 25.0
Shaft Rotation DirectionCOUNTERCLOCKWISE
Drive Connection TypeFLEXIBLE
Major Graduation ColorWHITE
Pointer Movement DirectionLEFT TO RIGHT AND COUNTERCLOCKWISE
Dial Quantity1
Scale Quantity1
Unit TypeCENTRIFUGAL
Lamp TypeFLUORESCENT
Operating Range+0.0 TO 2500.0 REVOLUTIONS PER MINUTE
Dial Background ColorBLACK
Totalizing MechanismNOT PROVIDED
MaterialSTEEL CASE
Minor Graduation ColorWHITE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
3110-00-108-9247 INTERCHANGEABLE
Bearing,ball,annular
5315-00-457-0447SQAP7347715 INTERCHANGEABLE
Pin,straight,headless
U S Army Tank Automotive Command Amsta-Im-Mm
4820-00-606-6320A14822 INTERCHANGEABLE
Valve,globe
Mueller Brass Co.
4820-00-918-2491103KD INTERCHANGEABLE
Cock,shutoff,screw Stem
Couplings Co Inc
4920-01-023-4012 INTERCHANGEABLE
Blanket,cover,heater
4420-01-287-2568 INTERCHANGEABLE
Cooler,fluid,industrial
3455-01-412-747639018 INTERCHANGEABLE
Cutter,milling,end
Doall Baltimore Company
6515-01-604-4443K871H INTERCHANGEABLE
Suture,nonabsorbable,surgical
Ethicon Us Llc Div Ethicon
5120-01-666-317232121 INTERCHANGEABLE
Tire Iron
Summit Tool Company
Cross-Reference Index
Part NumberManufacturer
551-SE Stewart-Warner Corporation (USA)
32121 PRIMARY Napco International Llc Dba Napco International Inc (USA)
Related Parts
3110-00-108-9247INTERCHANGEABLE
BEARING,BALL,ANNULAR
5315-00-457-0447INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
SQAP7347715
4820-00-606-6320INTERCHANGEABLE
VALVE,GLOBE
A14822
4820-00-918-2491INTERCHANGEABLE
COCK,SHUTOFF,SCREW STEM
103KD
4920-01-023-4012INTERCHANGEABLE
BLANKET,COVER,HEATER
4420-01-287-2568INTERCHANGEABLE
COOLER,FLUID,INDUSTRIAL
3455-01-412-7476INTERCHANGEABLE
CUTTER,MILLING,END
39018
6515-01-604-4443INTERCHANGEABLE
SUTURE,NONABSORBABLE,SURGICAL
K871H
5120-01-666-3172INTERCHANGEABLE
TIRE IRON
32121

Frequently Asked Questions

What is NSN 6680-00-060-7102?

NSN 6680-00-060-7102 is a Tachometer,mechanical,fixed Moun, manufactured by Napco International Llc Dba Napco International Inc, classified under FSC 6680 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6680-00-060-7102?

NSN 6680-00-060-7102 has 2 cross-referenced part numbers: 551-SE (Stewart-Warner Corporation), 32121 (Napco International Llc Dba Napco International Inc).

What NSN replaces 6680-00-060-7102?

There are 9 known substitutes for 6680-00-060-7102: 3110-00-108-9247, 5315-00-457-0447, 4820-00-606-6320 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 32121?

Key specifications for 32121: Scale Measurement Unit: REVOLUTIONS PER MINUTE; Unable to Decode: UNABLE TO DECODE; Pointer Quantity: 1; Overall Diameter: 3.765 INCHES NOMINAL IN. 23 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6680-00-060-7102 still in active supply?

NSN 6680-00-060-7102 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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