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NSN 3020-00-428-4686Government record, cited

Gear, Special3020-00-428-4686

NSN 3020-00-428-4686 · NIIN 004284686 · Part number 877A21
Rolls-Royce Controls and Data Services Limited · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE U4287
Government record, cited
NSN 3020-00-428-4686 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-428-4686. Manufacturer of record part number: 877A21.
Also searched as  3020-00-428-4686 · 3020004284686 · NIIN 004284686 · 00-428-4686 · FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE U4287 · 877A21
Nearby stock numbers  ·
Features
  • Gear,special — FSC 3020
  • 1 manufacturer part number on file
  • Manufacturer of record: Rolls-Royce Controls and Data Services Limited
Identification
  • NSN: 3020-00-428-4686
  • NIIN: 004284686
  • FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
  • FSG: 30 — Mechanical Power Transmission Equipment
  • Primary part number: 877A21
  • Manufacturer: Rolls-Royce Controls and Data Services Limited
General Description

The Gear,special, cataloged under National Stock Number 3020-00-428-4686, 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 Rolls-Royce Controls and Data Services Limited. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts
Item NameGear,special
FSC / FSG3020 — Gears, Pulleys, Sprockets, and Transmission Chain (FSG 30)
ManufacturersRolls-Royce Controls and Data Services Limited (CAGE U4287)
Technical Specifications
ParameterValue
NSN3020-00-428-4686
Primary Part Number877A21
Item NameGear,special
FSC / FSG3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
ManufacturerRolls-Royce Controls and Data Services Limited
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Cross-Reference Index
Part NumberManufacturer
877A21 PRIMARY Rolls-Royce Controls and Data Services Limited (GBR)
Reference documents
ReferenceMeaning
877A21 3/9 Design control — primary reference
Goodrich Control Systems Ltd T/a Goodrich Engine Control Systems
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.
3020-00-001-2090
3020-00-001-2090 · Item name not on file
3020-00-001-4468
3020-00-001-4468 · Item name not on file
3020-00-007-2779
GEAR,ANTIBACKLASH,SPUR
3020-00-009-4033
GEAR,SPUR
3020-00-031-2269
3020-00-031-2269 · Item name not on file
3020-00-146-4181
GEAR,IDLER
3020-00-146-4222
GEAR,IDLER
3020-00-425-7115
GEAR,HELICAL

Frequently Asked Questions

What is NSN 3020-00-428-4686?

NSN 3020-00-428-4686 is a Gear,special, manufactured by Rolls-Royce Controls and Data Services Limited, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.

What part numbers are listed for NSN 3020-00-428-4686?

NSN 3020-00-428-4686 has 1 manufacturer part number on file: 877A21 (Rolls-Royce Controls and Data Services Limited).

Is NSN 3020-00-428-4686 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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