NSN 3020-01-644-4777 · NIIN 016444777 · Part number 12446486
U S Army Tank Automotive Command Amsta-Im-Mm · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 19207
Government record, cited
NSN 3020-01-644-4777 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-644-4777. Manufacturer of record part number: 12446486.
Also searched as3020-01-644-4777 ·
3020016444777 ·
NIIN 016444777 ·
01-644-4777 ·
FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 19207 · 12446486
Supplementary Features: TRANSMISION,HYDRAULIC,VEHICULAR NSN 2520-016265061; 90 TEETH; 12 MOUNTING HOLES; DESIGNED TO MATE WITH PART NO. 12446563
Material: STEEL
Thread Size and Series/type Designator: 0.25 INCHES, CLASS 3B UNF IN
1 manufacturer part number on file
Manufacturer of record: U S Army Tank Automotive Command Amsta-Im-Mm
Identification
NSN: 3020-01-644-4777
NIIN: 016444777
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 12446486
Manufacturer: U S Army Tank Automotive Command Amsta-Im-Mm
General Description
The Gear,ring,flywheel, cataloged under National Stock Number 3020-01-644-4777, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 4 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
3020-01-644-4777
Primary Part Number
12446486
Item Name
Gear,ring,flywheel
FSC / FSG
3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer
U S Army Tank Automotive Command Amsta-Im-Mm
Status
ACTIVE
Overall Diameter
10.99 INCHES NOMINAL IN
Supplementary Features
TRANSMISION,HYDRAULIC,VEHICULAR NSN 2520-016265061; 90 TEETH; 12 MOUNTING HOLES; DESIGNED TO MATE WITH PART NO. 12446563
U S Army Tank Automotive Command Amsta-Im-Mm (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 3020-01-644-4777?
NSN 3020-01-644-4777 is a Gear,ring,flywheel, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
What part numbers are listed for NSN 3020-01-644-4777?
NSN 3020-01-644-4777 has 1 manufacturer part number on file: 12446486 (U S Army Tank Automotive Command Amsta-Im-Mm).
What are the specifications of 12446486?
Key specifications for 12446486: Overall Diameter: 10.99 INCHES NOMINAL IN; Supplementary Features: TRANSMISION,HYDRAULIC,VEHICULAR NSN 2520-016265061; 90 TEETH; 12 MOUNTING HOLES; DESIGNED TO MATE WITH PART NO. 12446563; Special Features: USED ON HMPT 800; NEXT ASSY IS PART NO. 12446493; Part Name Assigned by Controlling Agency: GEAR,RING,3RD RANGE CLUTCH. 4 specifications are documented in the U.S. Government catalog.
Is NSN 3020-01-644-4777 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.