Gear, Spur3020-01-040-1979

NSN 3020-01-040-1979 · NIIN 010401979 · Part number 6887685

Allison Transmission Inc Dba Allison Transmission, Inc · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 73342

Government record, cited

NSN 3020-01-040-1979 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-040-1979. Manufacturer of record part number: 6887685.

Also searched as 3020-01-040-1979 · 3020010401979 · NIIN 010401979 · 01-040-1979 · FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 73342 · 6887685

Nearby stock numbers ← 3020-01-040-1978 Gear, Spur · 3020-01-040-1980 Gear, Spur →

Features

Gear,spur — FSC 3020
Bore Nominal Diameter: 0.750 INCHES BOTH ENDS IN
Teeth Quantity: 11
Body Style: PLAIN, SOLID
Bore Style: PLAIN BOTH ENDS
Style Designator: HUBLESS
Pitch Diameter: 1.3750 INCHES NOMINAL IN
Features Provided: CASEHARDENED

Identification

NSN: 3020-01-040-1979
NIIN: 010401979
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 6887685
Manufacturer: Allison Transmission Inc Dba Allison Transmission, Inc

General Description

The Gear,spur, cataloged under National Stock Number 3020-01-040-1979, 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 Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 10 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	3020-01-040-1979
Primary Part Number	6887685
Item Name	Gear,spur
FSC / FSG	3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer	Allison Transmission Inc Dba Allison Transmission, Inc
Status	ACTIVE
Bore Nominal Diameter	0.750 INCHES BOTH ENDS IN
Teeth Quantity	11
Body Style	PLAIN, SOLID
Bore Style	PLAIN BOTH ENDS
Style Designator	HUBLESS
Pitch Diameter	1.3750 INCHES NOMINAL IN
Features Provided	CASEHARDENED
Nominal Outside Diameter	1.6420 INCHES IN
Pressure Angle	25.0000 DEGREES
Face Nominal Width	0.775 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
6887685 PRIMARY	Allison Transmission Inc Dba Allison Transmission, Inc (USA)

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 3020-01-040-1979?

NSN 3020-01-040-1979 is a Gear,spur, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.

What part numbers are listed for NSN 3020-01-040-1979?

NSN 3020-01-040-1979 has 1 manufacturer part number on file: 6887685 (Allison Transmission Inc Dba Allison Transmission, Inc).

What are the specifications of 6887685?

Key specifications for 6887685: Bore Nominal Diameter: 0.750 INCHES BOTH ENDS IN; Teeth Quantity: 11; Body Style: PLAIN, SOLID; Bore Style: PLAIN BOTH ENDS. 10 specifications are documented in the U.S. Government catalog.

Is NSN 3020-01-040-1979 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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