NSN 3020-01-287-4137 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-287-4137. Manufacturer of record part number: GMD-221.
Also searched as3020-01-287-4137 ·
3020012874137 ·
NIIN 012874137 ·
01-287-4137 ·
FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 70433 · GMD-221
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: GMD-221
Manufacturer: Appleton Marine Inc
General Description
The Gear,spur, cataloged under National Stock Number 3020-01-287-4137, 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 Appleton Marine Inc. Government technical data includes 9 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
3020-01-287-4137
Primary Part Number
GMD-221
Item Name
Gear,spur
FSC / FSG
3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
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 3020-01-287-4137?
NSN 3020-01-287-4137 is a Gear,spur, manufactured by Appleton Marine Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
What part numbers are listed for NSN 3020-01-287-4137?
NSN 3020-01-287-4137 has 1 manufacturer part number on file: GMD-221 (Appleton Marine Inc).
What are the specifications of GMD-221?
Key specifications for GMD-221: Keyway Nominal Width: 0.750 INCHES BOTH ENDS IN; Bore Nominal Diameter: 5.750 INCHES BOTH ENDS IN; Teeth Quantity: 124; Bore Style: W/ KEYWAY BOTH ENDS. 9 specifications are documented in the U.S. Government catalog.
Is NSN 3020-01-287-4137 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.