Meter Group6645-01-192-2973

NSN 6645-01-192-2973 · NIIN 011922973 · Part number 3N1589

Caterpillar Inc Div Caterpillar Defense · FSC 6645 — Time Measuring Instruments · FSG 66 — Instruments and Laboratory Equipment · CAGE 11083

Government record, cited

NSN 6645-01-192-2973 — this item is cataloged by the U.S. Government under National Stock Number 6645-01-192-2973. Manufacturer of record part number: 3N1589.

Also searched as 6645-01-192-2973 · 6645011922973 · NIIN 011922973 · 01-192-2973 · FSC 6645 Time Measuring Instruments · CAGE 11083 · 3N1589

Nearby stock numbers ← 6645-01-192-2964 Timer Assembly · 6645-01-192-3031 Timer, Sequential →

Features

Meter Group — FSC 6645
1 manufacturer part number on file
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense

Identification

NSN: 6645-01-192-2973
NIIN: 011922973
FSC: 6645 — Time Measuring Instruments
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: 3N1589
Manufacturer: Caterpillar Inc Div Caterpillar Defense

General Description

The Meter Group, cataloged under National Stock Number 6645-01-192-2973, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Meter Group
FSC / FSG	6645 — Time Measuring Instruments (FSG 66)
Manufacturers	Caterpillar Inc Div Caterpillar Defense (CAGE 11083)

Technical Specifications

Parameter	Value
NSN	6645-01-192-2973
Primary Part Number	3N1589
Item Name	Meter Group
FSC / FSG	6645 / 66 — Time Measuring Instruments
Manufacturer	Caterpillar Inc Div Caterpillar Defense
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
3N1589 PRIMARY	Caterpillar Inc Div Caterpillar Defense (USA)

No interchangeability data on file.

Other items in FSC 6645 — Time Measuring Instruments

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

6645-00-001-1256

6645-00-001-1256 · Item name not on file

6645-00-001-4498

6645-00-001-4498 · Item name not on file

6645-00-001-4584

6645-00-001-4584 · Item name not on file

6645-00-001-9400

METER,TIME TOTALIZING

6645-00-003-0327

6645-00-003-0327 · Item name not on file

6645-00-003-0328

6645-00-003-0328 · Item name not on file

6645-00-003-0337

6645-00-003-0337 · Item name not on file

6645-00-003-0338

METER,TIME TOTALIZING

Frequently Asked Questions

What is NSN 6645-01-192-2973?

NSN 6645-01-192-2973 is a Meter Group, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 6645, Time Measuring Instruments. Status: active.

What part numbers are listed for NSN 6645-01-192-2973?

NSN 6645-01-192-2973 has 1 manufacturer part number on file: 3N1589 (Caterpillar Inc Div Caterpillar Defense).

Is NSN 6645-01-192-2973 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.

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