Gear, Helical3020-01-272-7729

NSN 3020-01-272-7729 · NIIN 012727729 · Part number 19989

Westerbeke Corporation · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 03798

Government record, cited

NSN 3020-01-272-7729 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-272-7729. Manufacturer of record part number: 19989.

Also searched as 3020-01-272-7729 · 3020012727729 · NIIN 012727729 · 01-272-7729 · FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 03798 · 19989

Nearby stock numbers ← 3020-01-272-7614 Chain, Roller · 3020-01-272-7730 →

Features

Gear,helical — FSC 3020
Bore Nominal Diameter: 1.750 INCHES BOTH ENDS IN
Teeth Quantity: 48
Bore Style: PLAIN BOTH ENDS
Nominal Outside Diameter: 4.000 INCHES IN
1 manufacturer part number on file
Manufacturer of record: Westerbeke Corporation

Identification

NSN: 3020-01-272-7729
NIIN: 012727729
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 19989
Manufacturer: Westerbeke Corporation

General Description

The Gear,helical, cataloged under National Stock Number 3020-01-272-7729, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Westerbeke Corporation. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	3020-01-272-7729
Primary Part Number	19989
Item Name	Gear,helical
FSC / FSG	3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer	Westerbeke Corporation
Status	ACTIVE
Bore Nominal Diameter	1.750 INCHES BOTH ENDS IN
Teeth Quantity	48
Bore Style	PLAIN BOTH ENDS
Nominal Outside Diameter	4.000 INCHES IN

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
19989 PRIMARY	Westerbeke Corporation (USA)

Frequently Asked Questions

What is NSN 3020-01-272-7729?

NSN 3020-01-272-7729 is a Gear,helical, manufactured by Westerbeke Corporation, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.

What part numbers are listed for NSN 3020-01-272-7729?

NSN 3020-01-272-7729 has 1 manufacturer part number on file: 19989 (Westerbeke Corporation).

What are the specifications of 19989?

Key specifications for 19989: Bore Nominal Diameter: 1.750 INCHES BOTH ENDS IN; Teeth Quantity: 48; Bore Style: PLAIN BOTH ENDS; Nominal Outside Diameter: 4.000 INCHES IN. 4 specifications are documented in the U.S. Government catalog.

Is NSN 3020-01-272-7729 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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