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Tachometer Generator

NSN: 6680-00-068-0319 | Model: SA740A7

A generator consisting of a series of mounted coils surrounding a rotating permanent magnet or a permanent magnet and a rotating armature. The voltage output is directly proportional to the speed of rotation of the shaft. When used with an associated indicator, transmits such data as revolutions per minute, speed of travel, and the like. May also be used in servomechanism loops as a system stabilizer. Excludes rotary inverters, rotary converters, motor generators, dynamotors, generator sets, synchros, frequency or phase changers, and engine accessory generators.

NSN Properties and Flags
NATO Stock Number
6680-00-068-0319
DEMIL
NO
Overall Height
1.135 inches
Overall Length
2.542 inches
Overall Width
1.135 inches
Electrical Resistance
38.0 ohms
Shaft Diameter
0.1200 inches single end
Mounting Method
Face
Mounting Facility Type And Quantity
3 threaded hole
Accuracy Range In Percent
-0.01/+0.01
Calibration Speed In Rpm
1000.0
Calibration Voltage Output Type In Volts
38.0 dc
Features Provided
Horizontal mounting position and vertical mounting position
Length Of Shaft From Housing
0.500 inches single end
Mounting Facility Circle Diameter
0.876 inches
Rotor Speed Rating In Rpm
75.0 low full load or 12000.0 high full load
Shaft End Characteristic
A1 single style single end
Terminal Type And Quantity
2 binding post

Inventory Check

The last inventory check on this NSN was done on 10/10/2023. Due to rapid changes in inventory this may not be the current stock qty.

  • New Surplus: 17

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

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NSN 6680-00-068-0319 Datasheet

Supply Class (FSC):
Mechanical Motion Measuring Instruments Liquid Level Liquid And Gas Flow
Cross Reference:
  • SA740A7
Cage Codes:
  • Tek Products Company Inc. Servo (CAGE 83555)
Replacements:
  • 6680-00-068-0319 replaces 6680-00-898-2308
Schedule B & Trade:
  • Schedule B: 9029205000 (NAICS 334514)

    Speedometers and tachometers, not for use in civil aircraft

  • SITC: 87325

    Speedometers and tachometers; stroboscopes

  • End Use: 30230

    Other parts and accessories of vehicles

Identification:
HMIC

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

PMIC

A - Item does not contain precious metal.

CRITL

- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    062120 - Generators/motors/parts noi

  • WCC:

    657 - Instruments, electric meter

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • ACC:

    B - Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater

  • LTL:

    W - Rating variable

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
    Sms
  • AAC
    J
  • Quantity per pack
    1
  • Unit of Measure
    Ea
  • Shelf Life
    N/A
  • Classification Control
    U
  • MGMT_CTL
    Sf9sx-n
  • Repariability

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $356.68 to $594.47..
Does NSN 6680-00-068-0319 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Air Force, Department Of The Navy, and Turkey
What is the NIIN of NSN 6680-00-068-0319?
000680319 or 00-068-0319
Does NSN 6680-00-068-0319 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 6680-00-068-0319?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1963