NSN 6680-01-446-2981 · NIIN 014462981 · Part number 437-6758841-AY-1
Naval Sea Systems Command · FSC 6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments · FSG 66 — Instruments and Laboratory Equipment · CAGE 53711
Government record, cited
NSN 6680-01-446-2981 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-446-2981. Manufacturer of record part number: 437-6758841-AY-1.
Also searched as6680-01-446-2981 ·
6680014462981 ·
NIIN 014462981 ·
01-446-2981 ·
FSC 6680 Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments · CAGE 53711 · 437-6758841-AY-1 · 7497721-1 · C749-7721-FN AY-1
FSC: 6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: 437-6758841-AY-1
Manufacturer: Naval Sea Systems Command
General Description
The Indicator,electrical Tachometer, cataloged under National Stock Number 6680-01-446-2981, 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 Naval Sea Systems Command. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
6680-01-446-2981
Primary Part Number
437-6758841-AY-1
Item Name
Indicator,electrical Tachometer
FSC / FSG
6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
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 6680-01-446-2981?
NSN 6680-01-446-2981 is a Indicator,electrical Tachometer, manufactured by Naval Sea Systems Command, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
What part numbers are listed for NSN 6680-01-446-2981?
NSN 6680-01-446-2981 has 1 manufacturer part number on file: 437-6758841-AY-1 (Naval Sea Systems Command).
What are the specifications of 437-6758841-AY-1?
Key specifications for 437-6758841-AY-1: End Item Identification: ELECTRONIC CONTROL ASSY, SHAFT. 0 specifications are documented in the U.S. Government catalog.
Is NSN 6680-01-446-2981 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.