PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

42906Counter,rotating

Aerosonic Llc · NSN 6680-00-445-5499 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-445-5499 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-445-5499. Primary manufacturer part number: 42906.
Features
  • Counter,rotating — FSC 6680
  • Color: BLACK THIRD TEMP COEFFICIENT
  • Mounting Facility Type and Quantity: 2 SLOT
  • Mounting Type for Which Designed: UNABLE TO DECODE
  • Actuating Device Location: RIGHT SIDE SINGLE REGISTER SINGLE TIER
  • Style Designator: UNENCLOSED SQUARE OR RECTANGULAR
  • Shaft Revolutions Per Count: UNABLE TO DECODE
  • Register Reset Method: UNABLE TO DECODE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Counter,rotating, cataloged under National Stock Number 6680-00-445-5499, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Aerosonic Llc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6680-00-445-5499
Primary Part Number42906
Item NameCounter,rotating
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerAerosonic Llc
StatusCANCELLED
ColorBLACK THIRD TEMP COEFFICIENT
Mounting Facility Type and Quantity2 SLOT
Mounting Type for Which DesignedUNABLE TO DECODE
Actuating Device LocationRIGHT SIDE SINGLE REGISTER SINGLE TIER
Style DesignatorUNENCLOSED SQUARE OR RECTANGULAR
Shaft Revolutions Per CountUNABLE TO DECODE
Register Reset MethodUNABLE TO DECODE
Register Quantity1
Maximum Count RateUNABLE TO DECODE
Mounting Arrangement StyleTWO POSITION HORIZONTAL
Longest Horizontal Distance Between Mounting Centers1.250 INCHES NOMINAL IN
Figure Quantity Per RegisterUNABLE TO DECODE
ColorWHITE SECOND TEMP COEFFICIENT
Numeral Display MethodDRUM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5920-00-077-8520356012 INTERCHANGEABLE
Fuseholder,block
Littelfuse, Inc.
2990-00-142-0234 INTERCHANGEABLE
Muffler,exhaust
5133-00-142-496014506 INTERCHANGEABLE
Bit,forstner
Vermont American Corp
5310-00-178-961210A1914842 INTERCHANGEABLE
Washer,flat
Fwd Seagrave Holdings Lp
5342-00-321-418742906 INTERCHANGEABLE
Coupling,clamp,grooved
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
5330-00-494-2433415437 INTERCHANGEABLE
Seal,plain Encased
Federal-Mogul Corp Government Sales Dept
5999-00-606-5236 INTERCHANGEABLE
Contact,electrical
6150-01-016-9046 INTERCHANGEABLE
Cable Assembly,special Purpose,e
5950-01-155-7083 INTERCHANGEABLE
Coil,radio Frequency
5962-01-202-465442906 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Div Rmd Strategic
Cross-Reference Index
Part NumberManufacturer
42198 Aerosonic Llc (USA)
42906 PRIMARY Aerosonic Llc (USA)
41534 Aerosonic Llc (USA)
41537 Aerosonic Llc (USA)
A42198 Aerosonic Llc (USA)
Related Parts
5920-00-077-8520INTERCHANGEABLE
FUSEHOLDER,BLOCK
356012
2990-00-142-0234INTERCHANGEABLE
MUFFLER,EXHAUST
5133-00-142-4960INTERCHANGEABLE
BIT,FORSTNER
14506
5310-00-178-9612INTERCHANGEABLE
WASHER,FLAT
10A1914842
5342-00-321-4187INTERCHANGEABLE
COUPLING,CLAMP,GROOVED
42906
5330-00-494-2433INTERCHANGEABLE
SEAL,PLAIN ENCASED
415437
5999-00-606-5236INTERCHANGEABLE
CONTACT,ELECTRICAL
6150-01-016-9046INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
5950-01-155-7083INTERCHANGEABLE
COIL,RADIO FREQUENCY
5962-01-202-4654INTERCHANGEABLE
MICROCIRCUIT,MEMORY
42906
5962-01-204-1639INTERCHANGEABLE
MICROCIRCUIT,MEMORY
41534
5962-01-204-7612INTERCHANGEABLE
MICROCIRCUIT,MEMORY
41537

Frequently Asked Questions

What is NSN 6680-00-445-5499?

NSN 6680-00-445-5499 is a Counter,rotating, manufactured by Aerosonic Llc, classified under FSC 6680 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6680-00-445-5499?

NSN 6680-00-445-5499 has 5 cross-referenced part numbers: 42198 (Aerosonic Llc), 42906 (Aerosonic Llc), 41534 (Aerosonic Llc), 41537 (Aerosonic Llc), A42198 (Aerosonic Llc).

What NSN replaces 6680-00-445-5499?

There are 12 known substitutes for 6680-00-445-5499: 5920-00-077-8520, 2990-00-142-0234, 5133-00-142-4960 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 42906?

Key specifications for 42906: Color: BLACK THIRD TEMP COEFFICIENT; Mounting Facility Type and Quantity: 2 SLOT; Mounting Type for Which Designed: UNABLE TO DECODE; Actuating Device Location: RIGHT SIDE SINGLE REGISTER SINGLE TIER. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6680-00-445-5499 still in active supply?

NSN 6680-00-445-5499 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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