NSN 3020-01-085-2747 · NIIN 010852747 · Part number 77737051-501
Triumph Thermal Systems - Maryland, Inc. · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 01359
Government record, cited
NSN 3020-01-085-2747 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-085-2747. Manufacturer of record part number: 77737051-501.
Also searched as3020-01-085-2747 ·
3020010852747 ·
NIIN 010852747 ·
01-085-2747 ·
FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 01359 · 77737051-501
Bore Nominal Diameter: 0.472 INCHES BOTH ENDS0.472 INCHES BOTH ENDS IN
Design Type: SPUR SECOND GEARSPUR SECOND GEAR
Design Type: SPUR FIRST GEARSPUR FIRST GEAR
Bore Style: PLAIN BOTH ENDSPLAIN BOTH ENDS
Hub Style Designator: PLAIN FIRST ENDPLAIN FIRST END
Material: STEEL OVERALLSTEEL OVERALL
Construction: ASSEMBLEDASSEMBLED
Identification
NSN: 3020-01-085-2747
NIIN: 010852747
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 77737051-501
Manufacturer: Triumph Thermal Systems - Maryland, Inc.
General Description
The Gear Cluster, cataloged under National Stock Number 3020-01-085-2747, 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 Triumph Thermal Systems - Maryland, Inc.. Government technical data includes 7 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
3020-01-085-2747
Primary Part Number
77737051-501
Item Name
Gear Cluster
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 3020-01-085-2747?
NSN 3020-01-085-2747 is a Gear Cluster, manufactured by Triumph Thermal Systems - Maryland, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
What part numbers are listed for NSN 3020-01-085-2747?
NSN 3020-01-085-2747 has 1 manufacturer part number on file: 77737051-501 (Triumph Thermal Systems - Maryland, Inc.).
What are the specifications of 77737051-501?
Key specifications for 77737051-501: Bore Nominal Diameter: 0.472 INCHES BOTH ENDS0.472 INCHES BOTH ENDS IN; Design Type: SPUR SECOND GEARSPUR SECOND GEAR; Design Type: SPUR FIRST GEARSPUR FIRST GEAR; Bore Style: PLAIN BOTH ENDSPLAIN BOTH ENDS. 7 specifications are documented in the U.S. Government catalog.
Is NSN 3020-01-085-2747 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.