Gear Sector, Spur3020-01-043-4684

NSN 3020-01-043-4684 · NIIN 010434684

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

Government record, cited

Also searched as 3020-01-043-4684 · 3020010434684 · NIIN 010434684 · 01-043-4684 · FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain

Nearby stock numbers ← 3020-01-043-4683 Gear, Antibacklash, Spur · 3020-01-043-4791 →

Features

Gear Sector,spur — FSC 3020
Bore Nominal Diameter: 0.188 INCHES BOTH ENDS IN
Hub Nominal Diameter: 0.3750 INCHES FIRST END IN
Teeth Quantity: 185
Nominal Outside Radius: 0.9735 INCHES IN
Bore Style: PLAIN BOTH ENDS
Nominal Distance Between Body Face and Protruding Hub End: 0.0260 INCHES FIRST END IN
Style Designator: PROTRUDING HUB

Identification

NSN: 3020-01-043-4684
NIIN: 010434684
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment

General Description

The Gear Sector,spur, cataloged under National Stock Number 3020-01-043-4684, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	3020-01-043-4684
Item Name	Gear Sector,spur
FSC / FSG	3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Status	ACTIVE
Bore Nominal Diameter	0.188 INCHES BOTH ENDS IN
Hub Nominal Diameter	0.3750 INCHES FIRST END IN
Teeth Quantity	185
Nominal Outside Radius	0.9735 INCHES IN
Bore Style	PLAIN BOTH ENDS
Nominal Distance Between Body Face and Protruding Hub End	0.0260 INCHES FIRST END IN
Style Designator	PROTRUDING HUB
Tooth Form	STANDARD
Hub Style Designator	PLAIN FIRST END
Arc Nominal Length	3.6720 INCHES IN
Surface Treatment	ANODIZE OVERALL
Pitch Radius	0.9635 INCHES NOMINAL IN
Pressure Angle	20.0000 DEGREES
Material	ALUMINUM ALLOY 2024 OVERALL
Face Nominal Width	0.062 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

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
M2841-9	3/2 Design control — primary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain

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

3020-00-000-0091

GEAR,SPUR

3020-00-001-0027

3020-00-001-0027 · Item name not on file

3020-00-001-0028

3020-00-001-0028 · Item name not on file

3020-00-001-0063

3020-00-001-0063 · Item name not on file

3020-00-001-0064

3020-00-001-0064 · Item name not on file

3020-00-001-0066

3020-00-001-0066 · Item name not on file

3020-00-001-0071

3020-00-001-0071 · Item name not on file

3020-00-001-0072

3020-00-001-0072 · Item name not on file

Frequently Asked Questions

What is NSN 3020-01-043-4684?

NSN 3020-01-043-4684 is a Gear Sector,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.

What are the specifications of 3020-01-043-4684?

Key specifications for 3020-01-043-4684: Bore Nominal Diameter: 0.188 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.3750 INCHES FIRST END IN; Teeth Quantity: 185; Nominal Outside Radius: 0.9735 INCHES IN. 15 specifications are documented in the U.S. Government catalog.

Is NSN 3020-01-043-4684 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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