PartsTable TECHNICAL DATA SHEET
NSN 3020-01-156-8364Government record, cited

Gear, Helical3020-01-156-8364

NSN 3020-01-156-8364 · NIIN 011568364 · Part number 31171211
Perkins Engines Inc · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 13446
Government record, cited
NSN 3020-01-156-8364 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-156-8364. Manufacturer of record part number: 31171211.
Also searched as  3020-01-156-8364 · 3020011568364 · NIIN 011568364 · 01-156-8364 · FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 13446 · 31171211
Nearby stock numbers  ·
Features
  • Gear,helical — FSC 3020
  • Keyway Nominal Width: 0.250 INCHES BOTH ENDS IN
  • Bore Nominal Diameter: 1.875 INCHES BOTH ENDS IN
  • Teeth Quantity: 28
  • Bore Style: W/ KEYWAY BOTH ENDS
  • Teeth Type: SINGLE HELIX
  • Nominal Overall Length: 3.250 INCHES IN
  • Material: STEEL OVERALL
Identification
  • NSN: 3020-01-156-8364
  • NIIN: 011568364
  • FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
  • FSG: 30 — Mechanical Power Transmission Equipment
  • Primary part number: 31171211
  • Manufacturer: Perkins Engines Inc
General Description

The Gear,helical, cataloged under National Stock Number 3020-01-156-8364, 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 Perkins Engines Inc. 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
ParameterValue
NSN3020-01-156-8364
Primary Part Number31171211
Item NameGear,helical
FSC / FSG3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
ManufacturerPerkins Engines Inc
StatusACTIVE
Keyway Nominal Width0.250 INCHES BOTH ENDS IN
Bore Nominal Diameter1.875 INCHES BOTH ENDS IN
Teeth Quantity28
Bore StyleW/ KEYWAY BOTH ENDS
Teeth TypeSINGLE HELIX
Nominal Overall Length3.250 INCHES IN
MaterialSTEEL OVERALL
Face Nominal Width1.375 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
31171211 PRIMARY Perkins Engines Inc (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 3020-01-156-8364?

NSN 3020-01-156-8364 is a Gear,helical, manufactured by Perkins Engines Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.

What part numbers are listed for NSN 3020-01-156-8364?

NSN 3020-01-156-8364 has 1 manufacturer part number on file: 31171211 (Perkins Engines Inc).

What are the specifications of 31171211?

Key specifications for 31171211: Keyway Nominal Width: 0.250 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.875 INCHES BOTH ENDS IN; Teeth Quantity: 28; Bore Style: W/ KEYWAY BOTH ENDS. 8 specifications are documented in the U.S. Government catalog.

Is NSN 3020-01-156-8364 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.
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