PartsTable TECHNICAL DATA SHEET
NSN 3020-01-072-3580Government record, cited

Gear, Forward Pinion3020-01-072-3580

NSN 3020-01-072-3580 · NIIN 010723580 · Part number A6984
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 61208
Government record, cited
NSN 3020-01-072-3580 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-072-3580. Manufacturer of record part number: A6984.
Also searched as  3020-01-072-3580 · 3020010723580 · NIIN 010723580 · 01-072-3580 · FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 61208 · A6984
Nearby stock numbers  ·
Features
  • Gear,forward Pinion — FSC 3020
  • General Characteristics Item Description: STEEL,5.250 IN.OD,7.375 IN.LG IN
  • 1 manufacturer part number on file
  • Manufacturer of record: Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
Identification
  • NSN: 3020-01-072-3580
  • NIIN: 010723580
  • FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
  • FSG: 30 — Mechanical Power Transmission Equipment
  • Primary part number: A6984
  • Manufacturer: Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
General Description

The Gear,forward Pinion, cataloged under National Stock Number 3020-01-072-3580, 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 Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. Government technical data includes 1 specification, 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
ParameterValue
NSN3020-01-072-3580
Primary Part NumberA6984
Item NameGear,forward Pinion
FSC / FSG3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
ManufacturerTwin Disc, Incorporated Dba Twin Disc Mid-Atlantic
StatusACTIVE
General Characteristics Item DescriptionSTEEL,5.250 IN.OD,7.375 IN.LG IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
A6984 PRIMARY Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (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 3020-01-072-3580?

NSN 3020-01-072-3580 is a Gear,forward Pinion, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.

What part numbers are listed for NSN 3020-01-072-3580?

NSN 3020-01-072-3580 has 1 manufacturer part number on file: A6984 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).

What are the specifications of A6984?

Key specifications for A6984: General Characteristics Item Description: STEEL,5.250 IN.OD,7.375 IN.LG IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 3020-01-072-3580 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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