PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CT1000-2001Tachometer,mechanical,handheld

Schulze Mfg., Inc. · NSN 6680-00-243-9977 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-243-9977 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-243-9977. Primary manufacturer part number: CT1000-2001.
Features
  • Tachometer,mechanical,handheld — FSC 6680
  • Measurement Unit: REVOLUTIONS PER MINUTE
  • Carrying Case: PROVIDED
  • Accessory Components and Quantity: SMALL CONVEX TIP; LARGE CONCAVE TIP,RUBBER COUPLING,OPERATING MANUAL,4 AA BATTERIES
  • 10 verified cross-references
  • Primary manufacturer: Schulze Mfg., Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Tachometer,mechanical,handheld, cataloged under National Stock Number 6680-00-243-9977, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Schulze Mfg., Inc.. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 6 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
NSN6680-00-243-9977
Primary Part NumberCT1000-2001
Item NameTachometer,mechanical,handheld
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerSchulze Mfg., Inc.
StatusACTIVE
Measurement UnitREVOLUTIONS PER MINUTE
Carrying CasePROVIDED
Accessory Components and QuantitySMALL CONVEX TIP; LARGE CONCAVE TIP,RUBBER COUPLING,OPERATING MANUAL,4 AA BATTERIES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-004-0222989089-1 INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Dba Raytheon
5950-00-066-0929 INTERCHANGEABLE
Transformer,radio Frequency
5120-00-277-1187JC905A INTERCHANGEABLE
Wrench,open End
The Stanley Works Dba Stanley Proto
5330-00-300-5931 INTERCHANGEABLE
Gasket
4820-00-421-04441716 INTERCHANGEABLE
Disk,valve
Droitcour Co
4910-00-506-0037 INTERCHANGEABLE
Stand,maintenance,automotive Eng
3020-00-541-68351716 INTERCHANGEABLE
Gear,spur
L3harris Technologies, Inc. Div Space and Airborne Systems
5360-00-657-68861726 INTERCHANGEABLE
Spring,helical,compression
Miller-Holzwarth Inc.
5910-00-666-8475 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
6240-00-926-1213A1726X INTERCHANGEABLE
Lamp,incandescent
Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron
Cross-Reference Index
Part NumberManufacturer
R7100 Global Test Supply Llc (USA)
CT-1000 Jones Instrument Corp (USA)
R7100 Reed Instruments Distribution Sale Network (CAN)
ST-6236-B Ametek Inc (USA)
6612-00-001 Dynapar Corp Div Specialty Product Technologies (USA)
CT-1000 Schulze Mfg., Inc. (USA)
1716 Ametek Inc (USA)
CT1000-2001 PRIMARY Schulze Mfg., Inc. (USA)
1726 Ametek Inc (USA)
ST-6236-B Global Test Supply Llc (USA)
Related Parts
5950-00-004-0222INTERCHANGEABLE
COIL,RADIO FREQUENCY
989089-1
5950-00-066-0929INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
5120-00-277-1187INTERCHANGEABLE
WRENCH,OPEN END
JC905A
5330-00-300-5931INTERCHANGEABLE
GASKET
4820-00-421-0444INTERCHANGEABLE
DISK,VALVE
1716
4910-00-506-0037INTERCHANGEABLE
STAND,MAINTENANCE,AUTOMOTIVE ENG
3020-00-541-6835INTERCHANGEABLE
GEAR,SPUR
1716
5360-00-657-6886INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
1726
5910-00-666-8475INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
6240-00-926-1213INTERCHANGEABLE
LAMP,INCANDESCENT
A1726X
6250-00-951-4844INTERCHANGEABLE
LAMPHOLDER
5950-00-955-0336INTERCHANGEABLE
COIL,RADIO FREQUENCY
9997115

Frequently Asked Questions

What is NSN 6680-00-243-9977?

NSN 6680-00-243-9977 is a Tachometer,mechanical,handheld, manufactured by Schulze Mfg., Inc., classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-00-243-9977?

NSN 6680-00-243-9977 has 10 cross-referenced part numbers: R7100 (Global Test Supply Llc), CT-1000 (Jones Instrument Corp), R7100 (Reed Instruments Distribution Sale Network), ST-6236-B (Ametek Inc), 6612-00-001 (Dynapar Corp Div Specialty Product Technologies) and 5 more.

What NSN replaces 6680-00-243-9977?

There are 12 known substitutes for 6680-00-243-9977: 5950-00-004-0222, 5950-00-066-0929, 5120-00-277-1187 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CT1000-2001?

Key specifications for CT1000-2001: Measurement Unit: REVOLUTIONS PER MINUTE; Carrying Case: PROVIDED; Accessory Components and Quantity: SMALL CONVEX TIP; LARGE CONCAVE TIP,RUBBER COUPLING,OPERATING MANUAL,4 AA BATTERIES. 3 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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