NSN 3020-01-339-1630 · NIIN 013391630 · Part number 50-128-0056-4
Timken Gears & Services Inc. Div Philadelphia Gear · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 17454
Government record, cited
NSN 3020-01-339-1630 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-339-1630. Manufacturer of record part number: 50-128-0056-4.
Also searched as3020-01-339-1630 ·
3020013391630 ·
NIIN 013391630 ·
01-339-1630 ·
FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 17454 · 50-128-0056-4
Hardness Rating: 27.0 BRINELL HULTGREN MINIMUM AND 31.0 BRINELL HULTGREN MAXIMUM BODY
Nominal Distance From Bore Center to Keyway Bottom: 0.750 INCHES BOTH ENDS IN
Identification
NSN: 3020-01-339-1630
NIIN: 013391630
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 50-128-0056-4
Manufacturer: Timken Gears & Services Inc. Div Philadelphia Gear
General Description
The Gear,spur, cataloged under National Stock Number 3020-01-339-1630, 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 Timken Gears & Services Inc. Div Philadelphia Gear. Government technical data includes 8 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
3020-01-339-1630
Primary Part Number
50-128-0056-4
Item Name
Gear,spur
FSC / FSG
3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer
Timken Gears & Services Inc. Div Philadelphia Gear
Status
ACTIVE
Keyway Nominal Width
1.500 INCHES BOTH ENDS IN
Bore Nominal Diameter
5.750 INCHES BOTH ENDS IN
Teeth Quantity
132
Body Style
WEBBED, SOLID
Bore Style
W/ KEYWAY BOTH ENDS
Hardness Rating
27.0 BRINELL HULTGREN MINIMUM AND 31.0 BRINELL HULTGREN MAXIMUM BODY
Nominal Distance From Bore Center to Keyway Bottom
Timken Gears & Services Inc. Div Philadelphia Gear (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 3020-01-339-1630?
NSN 3020-01-339-1630 is a Gear,spur, manufactured by Timken Gears & Services Inc. Div Philadelphia Gear, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
What part numbers are listed for NSN 3020-01-339-1630?
NSN 3020-01-339-1630 has 1 manufacturer part number on file: 50-128-0056-4 (Timken Gears & Services Inc. Div Philadelphia Gear).
What are the specifications of 50-128-0056-4?
Key specifications for 50-128-0056-4: Keyway Nominal Width: 1.500 INCHES BOTH ENDS IN; Bore Nominal Diameter: 5.750 INCHES BOTH ENDS IN; Teeth Quantity: 132; Body Style: WEBBED, SOLID. 8 specifications are documented in the U.S. Government catalog.
Is NSN 3020-01-339-1630 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.