PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

944Tachometer,mechanical,handheld

Totco Div Baker International Corp · NSN 6680-00-551-3693 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-551-3693 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-551-3693. Primary manufacturer part number: 944.
Features
  • Tachometer,mechanical,handheld — FSC 6680
  • Scale Measurement Range: +0.0 TO 100.0 AND +0.0 TO 50.0 AND +0.0 TO 1000.0 AND +0.0 TO 500.0
  • Speed Selector: NOT PROVIDED
  • Manual Reset: PROVIDED
  • Scale Smallest Increment: 1.0 REVOLUTIONS PER MINUTE
  • Unit Type: CHRONOMETRIC
  • Scale Quantity: 4
  • Pointer Quantity: 2
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Tachometer,mechanical,handheld, cataloged under National Stock Number 6680-00-551-3693, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Totco Div Baker International Corp. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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
NSN6680-00-551-3693
Primary Part Number944
Item NameTachometer,mechanical,handheld
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerTotco Div Baker International Corp
StatusCANCELLED
Scale Measurement Range+0.0 TO 100.0 AND +0.0 TO 50.0 AND +0.0 TO 1000.0 AND +0.0 TO 500.0
Speed SelectorNOT PROVIDED
Manual ResetPROVIDED
Scale Smallest Increment1.0 REVOLUTIONS PER MINUTE
Unit TypeCHRONOMETRIC
Scale Quantity4
Pointer Quantity2
Operating Range+0.0 TO 500.0 FEET PER MINUTE AND +0.0 TO 1000.0 REVOLUTIONS PER MINUTE FT
Measurement UnitFEET PER MINUTE AND REVOLUTIONS PER MINUTE
Scale Measurement UnitFEET PER MINUTE
Carrying CasePROVIDED
Time Interval in Seconds10.0
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5950-00-053-0145944 INTERCHANGEABLE
Coil,radio Frequency
Arizona Capacitors, Inc
8030-00-118-001257141 INTERCHANGEABLE
Sealing Compound
Loctite Corp
8030-00-133-3164 INTERCHANGEABLE
Sealing Compound
5962-00-163-4157 INTERCHANGEABLE
Microcircuit,digital
2990-00-164-4073 INTERCHANGEABLE
Muffler,exhaust
6625-00-237-8903 INTERCHANGEABLE
Test Set,television
5310-00-275-5614944 INTERCHANGEABLE
Nut,plain,hexagon
Triumph Engine Control Systems Llc
6625-00-649-5113AN/PSM-3 INTERCHANGEABLE
Voltmeter
Joint Electronics Type Designation System
4310-00-718-9273AC1965 INTERCHANGEABLE
Valve,reed
Dresser Industries Inc Leroi Div
6210-00-781-2916 INTERCHANGEABLE
Filter,indicator Light
Cross-Reference Index
Part NumberManufacturer
944 Totco Div Baker International Corp (USA)
Related Parts
5950-00-053-0145INTERCHANGEABLE
COIL,RADIO FREQUENCY
944
8030-00-118-0012INTERCHANGEABLE
SEALING COMPOUND
57141
8030-00-133-3164INTERCHANGEABLE
SEALING COMPOUND
5962-00-163-4157INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
2990-00-164-4073INTERCHANGEABLE
MUFFLER,EXHAUST
6625-00-237-8903INTERCHANGEABLE
TEST SET,TELEVISION
5310-00-275-5614INTERCHANGEABLE
NUT,PLAIN,HEXAGON
944
6625-00-649-5113INTERCHANGEABLE
VOLTMETER
AN/PSM-3
4310-00-718-9273INTERCHANGEABLE
VALVE,REED
AC1965
6210-00-781-2916INTERCHANGEABLE
FILTER,INDICATOR LIGHT
5330-00-892-1706INTERCHANGEABLE
GASKET
244295
5330-01-004-0276INTERCHANGEABLE
PACKING
9-44

Frequently Asked Questions

What is NSN 6680-00-551-3693?

NSN 6680-00-551-3693 is a Tachometer,mechanical,handheld, manufactured by Totco Div Baker International Corp, classified under FSC 6680 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6680-00-551-3693?

NSN 6680-00-551-3693 has 1 cross-referenced part number: 944 (Totco Div Baker International Corp).

What NSN replaces 6680-00-551-3693?

There are 12 known substitutes for 6680-00-551-3693: 5950-00-053-0145, 8030-00-118-0012, 8030-00-133-3164 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 944?

Key specifications for 944: Scale Measurement Range: +0.0 TO 100.0 AND +0.0 TO 50.0 AND +0.0 TO 1000.0 AND +0.0 TO 500.0; Speed Selector: NOT PROVIDED; Manual Reset: PROVIDED; Scale Smallest Increment: 1.0 REVOLUTIONS PER MINUTE. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6680-00-551-3693 still in active supply?

NSN 6680-00-551-3693 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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