PartsTable TECHNICAL DATA SHEET
NSN 6680-01-027-3410Government record, cited

Shaft Assembly, Tachometer Drive6680-01-027-3410

NSN 6680-01-027-3410 · NIIN 010273410 · Part number 9N1856
Caterpillar Inc Div Caterpillar Defense · FSC 6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments · FSG 66 — Instruments and Laboratory Equipment · CAGE 11083
Government record, cited
NSN 6680-01-027-3410 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-027-3410. Manufacturer of record part number: 9N1856.
Also searched as  6680-01-027-3410 · 6680010273410 · NIIN 010273410 · 01-027-3410 · FSC 6680 Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments · CAGE 11083 · 9N1856
Nearby stock numbers  ·
Features
  • Shaft Assembly,tachometer Drive — FSC 6680
  • General Characteristics Item Description: ONE EA SHAFT,P/N 9N1857,ONE EA SLEEVE,P/N 9L9236
  • 2 manufacturer part numbers on file
  • Manufacturer of record: Caterpillar Inc Div Caterpillar Defense
Identification
  • NSN: 6680-01-027-3410
  • NIIN: 010273410
  • FSC: 6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
  • FSG: 66 — Instruments and Laboratory Equipment
  • Primary part number: 9N1856
  • Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description

The Shaft Assembly,tachometer Drive, cataloged under National Stock Number 6680-01-027-3410, is classified within Federal Supply Class 6680 (Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-01-027-3410
Primary Part Number9N1856
Item NameShaft Assembly,tachometer Drive
FSC / FSG6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
General Characteristics Item DescriptionONE EA SHAFT,P/N 9N1857,ONE EA SLEEVE,P/N 9L9236
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
9N1856 Caterpillar Tractor Co Ltd (GBR)
9N1856 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
No interchangeability data on file.
Other items in FSC 6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6680-00-000-0189
TRANSMITTER,LIQUID QUANTITY
6680-00-001-1478
GAGE ROD-CAP,LIQUID LEVEL
6680-00-001-1502
6680-00-001-1502 · Item name not on file
6680-00-001-1506
6680-00-001-1506 · Item name not on file
6680-00-001-1511
GAGE ROD,LIQUID LEVEL
6680-00-001-3672
COUNTER,ROTATING
6680-00-001-3675
INDICATOR,SIGHT,LIQUID
6680-00-001-4170
COUNTER,ROTATING

Frequently Asked Questions

What is NSN 6680-01-027-3410?

NSN 6680-01-027-3410 is a Shaft Assembly,tachometer Drive, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.

What part numbers are listed for NSN 6680-01-027-3410?

NSN 6680-01-027-3410 has 2 manufacturer part numbers on file: 9N1856 (Caterpillar Tractor Co Ltd), 9N1856 (Caterpillar Inc Div Caterpillar Defense).

What are the specifications of 9N1856?

Key specifications for 9N1856: General Characteristics Item Description: ONE EA SHAFT,P/N 9N1857,ONE EA SLEEVE,P/N 9L9236. 1 specification is documented in the U.S. Government catalog.

Is NSN 6680-01-027-3410 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
PartsTable Design LLC · partstable.com