PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RC-30Tachometer,mechanical,fixed Moun

Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc · NSN 6680-00-786-3950 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-786-3950 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-786-3950. Primary manufacturer part number: RC-30.
Features
  • Tachometer,mechanical,fixed Moun — FSC 6680
  • Case Shape: ROUND
  • Dial Illumination: NOT PROVIDED
  • Pointer Movement Direction: ANY ACCEPTABLE
  • Ahead-Astern Semaphore: NOT PROVIDED
  • Operating Range: +0.0 TO 2000.0 REVOLUTIONS PER MINUTE
  • Drive Connection Type: ANY ACCEPTABLE
  • Overall Diameter: 3.781 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Tachometer,mechanical,fixed Moun, cataloged under National Stock Number 6680-00-786-3950, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-00-786-3950
Primary Part NumberRC-30
Item NameTachometer,mechanical,fixed Moun
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerJaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc
StatusACTIVE
Case ShapeROUND
Dial IlluminationNOT PROVIDED
Pointer Movement DirectionANY ACCEPTABLE
Ahead-Astern SemaphoreNOT PROVIDED
Operating Range+0.0 TO 2000.0 REVOLUTIONS PER MINUTE
Drive Connection TypeANY ACCEPTABLE
Overall Diameter3.781 INCHES NOMINAL IN
Dial Quantity1
Pointer Quantity1
Scale Measurement Range+0.0 TO 2000.0
Pointer ColorANY ACCEPTABLE
Minor Graduation ColorANY ACCEPTABLE
Totalizing MechanismNOT PROVIDED
Scale Quantity1
Scale Measurement UnitREVOLUTIONS PER MINUTE
Major Graduation ColorANY ACCEPTABLE
Dial Background ColorANY ACCEPTABLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4330-00-211-4799 INTERCHANGEABLE
Filter Element,fluid
5950-00-243-5295RC30 INTERCHANGEABLE
Reactor
Berkshire Transformer
4330-00-278-9595WD19 INTERCHANGEABLE
Filter Element,fluid
Walker Mfg Co
5120-00-322-62238708744 INTERCHANGEABLE
Compressor,piston Ring
U S Army Tank Automotive Command Amsta-Im-Mm
5930-00-548-644846479DH3 INTERCHANGEABLE
Switch,rotary
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
5905-00-771-2286 INTERCHANGEABLE
Resistor,fixed,film
3455-00-984-3405 INTERCHANGEABLE
File,rotary
8040-01-004-2705 INTERCHANGEABLE
Primer,adhesive
1005-01-025-809511826290 INTERCHANGEABLE
Machine Gun,7.62 Millimeter
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
3040-01-049-616460415 INTERCHANGEABLE
Shaft,drive,flexible
L3harris Technologies, Inc Div Space & Airborne Systems
Cross-Reference Index
Part NumberManufacturer
RC20 Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc (USA)
60415 Dresser, Llc (USA)
RC-30 PRIMARY Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc (USA)
ST-508 Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc (USA)
Related Parts
4330-00-211-4799INTERCHANGEABLE
FILTER ELEMENT,FLUID
5950-00-243-5295INTERCHANGEABLE
REACTOR
RC30
4330-00-278-9595INTERCHANGEABLE
FILTER ELEMENT,FLUID
WD19
5120-00-322-6223INTERCHANGEABLE
COMPRESSOR,PISTON RING
8708744
5930-00-548-6448INTERCHANGEABLE
SWITCH,ROTARY
46479DH3
5905-00-771-2286INTERCHANGEABLE
RESISTOR,FIXED,FILM
3455-00-984-3405INTERCHANGEABLE
FILE,ROTARY
8040-01-004-2705INTERCHANGEABLE
PRIMER,ADHESIVE
1005-01-025-8095INTERCHANGEABLE
MACHINE GUN,7.62 MILLIMETER
11826290
3040-01-049-6164INTERCHANGEABLE
SHAFT,DRIVE,FLEXIBLE
60415
6632-01-154-1697INTERCHANGEABLE
TIMER,BLOOD AND PLASMA COAGULATI
260415
2990-01-218-8457INTERCHANGEABLE
CAP ASSEMBLY,PROTECTIVE,MUFFLER-
AR86596

Frequently Asked Questions

What is NSN 6680-00-786-3950?

NSN 6680-00-786-3950 is a Tachometer,mechanical,fixed Moun, manufactured by Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-00-786-3950?

NSN 6680-00-786-3950 has 4 cross-referenced part numbers: RC20 (Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc), 60415 (Dresser, Llc), RC-30 (Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc), ST-508 (Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc).

What NSN replaces 6680-00-786-3950?

There are 12 known substitutes for 6680-00-786-3950: 4330-00-211-4799, 5950-00-243-5295, 4330-00-278-9595 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of RC-30?

Key specifications for RC-30: Case Shape: ROUND; Dial Illumination: NOT PROVIDED; Pointer Movement Direction: ANY ACCEPTABLE; Ahead-Astern Semaphore: NOT PROVIDED. 18 total characteristics are documented in the Federal Logistics Information System.

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