NSN 3020-01-502-5978 · NIIN 015025978 · Part number 87C3-50
Eastman Machine Company Dba Eastman Machine Co Div Eastman · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 1UXJ1
Government record, cited
NSN 3020-01-502-5978 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-502-5978. Manufacturer of record part number: 87C3-50.
Also searched as3020-01-502-5978 ·
3020015025978 ·
NIIN 015025978 ·
01-502-5978 ·
FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 1UXJ1 · 87C3-50
Manufacturer of record: Eastman Machine Company Dba Eastman Machine Co Div Eastman
Identification
NSN: 3020-01-502-5978
NIIN: 015025978
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 87C3-50
Manufacturer: Eastman Machine Company Dba Eastman Machine Co Div Eastman
General Description
The Gear,spur, cataloged under National Stock Number 3020-01-502-5978, 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 Eastman Machine Company Dba Eastman Machine Co Div Eastman. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
Technical Specifications
Parameter
Value
NSN
3020-01-502-5978
Primary Part Number
87C3-50
Item Name
Gear,spur
FSC / FSG
3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer
Eastman Machine Company Dba Eastman Machine Co Div Eastman
Eastman Machine Company Dba Eastman Machine Co Div Eastman (USA)
Reference documents
Reference
Meaning
87C3-50
3/9Design control — primary reference
Eastman Machine Co
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 3020-01-502-5978?
NSN 3020-01-502-5978 is a Gear,spur, manufactured by Eastman Machine Company Dba Eastman Machine Co Div Eastman, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
What part numbers are listed for NSN 3020-01-502-5978?
NSN 3020-01-502-5978 has 1 manufacturer part number on file: 87C3-50 (Eastman Machine Company Dba Eastman Machine Co Div Eastman).
What are the specifications of 87C3-50?
Key specifications for 87C3-50: Part Name Assigned by Controlling Agency: SPUR GEAR. 0 specifications are documented in the U.S. Government catalog.
Is NSN 3020-01-502-5978 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.