PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T4Tachometer,vibrating Reed

Avo Intl · NSN 6680-00-515-6363 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-515-6363 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-515-6363. Primary manufacturer part number: T4.
Features
  • Tachometer,vibrating Reed — FSC 6680
  • Reed Row Quantity: 2
  • Carrying Case: NOT PROVIDED
  • Case Shape: RECTANGULAR
  • Mounting Method: HANDHELD
  • Interval Quantity Between Reeds: 25 AND 50
  • Reed Quantity Per Row: 31
  • Design Type: MULTIREED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Tachometer,vibrating Reed, cataloged under National Stock Number 6680-00-515-6363, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Avo Intl. Government technical data includes 9 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: Active.

Technical Specifications
ParameterValue
NSN6680-00-515-6363
Primary Part NumberT4
Item NameTachometer,vibrating Reed
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerAvo Intl
StatusACTIVE
Reed Row Quantity2
Carrying CaseNOT PROVIDED
Case ShapeRECTANGULAR
Mounting MethodHANDHELD
Interval Quantity Between Reeds25 AND 50
Reed Quantity Per Row31
Design TypeMULTIREED
Measurement Range in RPM+1500.0 TO 3750.0
Reed Measurement Range in RPM+1500.0 TO 2250.0 AND +2250.0 TO 3750.0
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5920-00-142-6862T4 INTERCHANGEABLE
Fuse,plug
Cooper Bussmann, Llc Dba Cooper Industries
6505-00-147-0000 INTERCHANGEABLE
Talc
5340-00-229-38461141GE INTERCHANGEABLE
Key Blank
Ilco Unican Corp Dba Wolf Sales
6625-00-257-21786039 INTERCHANGEABLE
Test Set,battery
Associated Equipment Corporation Dba Associated Equipment Corp
5985-00-295-3919 INTERCHANGEABLE
Attenuator,variable
6625-00-391-7957T4 INTERCHANGEABLE
Test Set,insulation Breakdown
Entron Industries Limited Partnership Dba Entron Industries Property Div
5950-00-519-9287T4 INTERCHANGEABLE
Transformer,audio Frequency
Bogen Communications Inc
6240-00-536-1867T4 INTERCHANGEABLE
Lamp,incandescent
Sol-Rex Miniature Lamp Works
4910-00-554-3542158H INTERCHANGEABLE
Lift,transmission and Differenti
Goodrich Corporation
6675-00-641-3549 INTERCHANGEABLE
Theodolite,surveying
Cross-Reference Index
Part NumberManufacturer
T4 PRIMARY Avo Intl (USA)
Related Parts
5920-00-142-6862INTERCHANGEABLE
FUSE,PLUG
T4
6505-00-147-0000INTERCHANGEABLE
TALC
5340-00-229-3846INTERCHANGEABLE
KEY BLANK
1141GE
6625-00-257-2178INTERCHANGEABLE
TEST SET,BATTERY
6039
5985-00-295-3919INTERCHANGEABLE
ATTENUATOR,VARIABLE
6625-00-391-7957INTERCHANGEABLE
TEST SET,INSULATION BREAKDOWN
T4
5950-00-519-9287INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
T4
6240-00-536-1867INTERCHANGEABLE
LAMP,INCANDESCENT
T4
4910-00-554-3542INTERCHANGEABLE
LIFT,TRANSMISSION AND DIFFERENTI
158H
6675-00-641-3549INTERCHANGEABLE
THEODOLITE,SURVEYING
5920-00-871-1045INTERCHANGEABLE
FUSE,PLUG
T4
5930-01-013-9731INTERCHANGEABLE
SWITCH SECTION,ROTARY

Frequently Asked Questions

What is NSN 6680-00-515-6363?

NSN 6680-00-515-6363 is a Tachometer,vibrating Reed, manufactured by Avo Intl, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-00-515-6363?

NSN 6680-00-515-6363 has 1 cross-referenced part number: T4 (Avo Intl).

What NSN replaces 6680-00-515-6363?

There are 12 known substitutes for 6680-00-515-6363: 5920-00-142-6862, 6505-00-147-0000, 5340-00-229-3846 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of T4?

Key specifications for T4: Reed Row Quantity: 2; Carrying Case: NOT PROVIDED; Case Shape: RECTANGULAR; Mounting Method: HANDHELD. 9 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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