Gear Cluster3020-01-221-3356

NSN 3020-01-221-3356 · NIIN 012213356 · Part number 771998

Naval Inventory Control Point Mechanicsburg · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 03950

Government record, cited

NSN 3020-01-221-3356 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-221-3356. Manufacturer of record part number: 771998.

Also searched as 3020-01-221-3356 · 3020012213356 · NIIN 012213356 · 01-221-3356 · FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 03950 · 771998

Nearby stock numbers ← 3020-01-221-3214 Gear, Spur · 3020-01-221-3430 Pulley, Groove →

Features

Gear Cluster — FSC 3020
1 manufacturer part number on file
Manufacturer of record: Naval Inventory Control Point Mechanicsburg

Identification

NSN: 3020-01-221-3356
NIIN: 012213356
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 771998
Manufacturer: Naval Inventory Control Point Mechanicsburg

General Description

The Gear Cluster, cataloged under National Stock Number 3020-01-221-3356, 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 Naval Inventory Control Point Mechanicsburg. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts

Item Name	Gear Cluster
FSC / FSG	3020 — Gears, Pulleys, Sprockets, and Transmission Chain (FSG 30)
Manufacturers	Naval Inventory Control Point Mechanicsburg (CAGE 03950)

Technical Specifications

Parameter	Value
NSN	3020-01-221-3356
Primary Part Number	771998
Item Name	Gear Cluster
FSC / FSG	3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer	Naval Inventory Control Point Mechanicsburg
Status	ACTIVE

Lifecycle & Compliance

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

⇄ Related Items 1

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

1680-01-585-4808771998 POSSIBLE MATCH

IDG,AIRCRAFT,MATERI

Possible match (shared part number)Hamilton Sundstrand Corporation

Cross-Reference Index

Part Number	Manufacturer
771998 PRIMARY	Naval Inventory Control Point Mechanicsburg (USA)

Related Parts

1680-01-585-4808POSSIBLE MATCH

IDG,AIRCRAFT,MATERI

771998

Frequently Asked Questions

What is NSN 3020-01-221-3356?

NSN 3020-01-221-3356 is a Gear Cluster, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.

What part numbers are listed for NSN 3020-01-221-3356?

NSN 3020-01-221-3356 has 1 manufacturer part number on file: 771998 (Naval Inventory Control Point Mechanicsburg).

What NSN replaces 3020-01-221-3356?

1 possible match (shared part number, not a government interchangeability claim): 1680-01-585-4808. Verify interchangeability with system specifications before substitution.

Is NSN 3020-01-221-3356 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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