PartsTable TECHNICAL DATA SHEET
NSN 3020-00-256-2181Government record, cited

Gear, Spur3020-00-256-2181

NSN 3020-00-256-2181 · NIIN 002562181 · Part number 122366PC30
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 10001
Government record, cited
NSN 3020-00-256-2181 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-256-2181. Manufacturer of record part number: 122366PC30.
Also searched as  3020-00-256-2181 · 3020002562181 · NIIN 002562181 · 00-256-2181 · FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 10001 · 122366PC30
Nearby stock numbers  ·
Features
  • Gear,spur — FSC 3020
  • Bore Nominal Diameter: 0.375 INCHES BOTH ENDS IN
  • Teeth Quantity: 30
  • Body Style: PLAIN, SOLID
  • Bore Style: PLAIN BOTH ENDS
  • Style Designator: HUBLESS
  • Material Document and Classification: QQ-A-250/4,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Pitch Diameter: 1.2490 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
Identification
  • NSN: 3020-00-256-2181
  • NIIN: 002562181
  • FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
  • FSG: 30 — Mechanical Power Transmission Equipment
  • Primary part number: 122366PC30
  • Manufacturer: Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-256-2181, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 12 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
NSN3020-00-256-2181
Primary Part Number122366PC30
Item NameGear,spur
FSC / FSG3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Bore Nominal Diameter0.375 INCHES BOTH ENDS IN
Teeth Quantity30
Body StylePLAIN, SOLID
Bore StylePLAIN BOTH ENDS
Style DesignatorHUBLESS
Material Document and ClassificationQQ-A-250/4,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Pitch Diameter1.2490 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
Tooth FormSTANDARD
Nominal Outside Diameter1.3325 INCHES IN
Pressure Angle14.5000 DEGREES
MaterialALUMINUM ALLOY 2024 OVERALL
Face Nominal Width0.0895 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
122366PC30 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (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.
3020-00-001-2090
3020-00-001-2090 · Item name not on file
3020-00-001-4468
3020-00-001-4468 · Item name not on file
3020-00-007-2779
GEAR,ANTIBACKLASH,SPUR
3020-00-009-4033
GEAR,SPUR
3020-00-031-2269
3020-00-031-2269 · Item name not on file
3020-00-146-4181
GEAR,IDLER
3020-00-146-4222
GEAR,IDLER
3020-00-425-7115
GEAR,HELICAL

Frequently Asked Questions

What is NSN 3020-00-256-2181?

NSN 3020-00-256-2181 is a Gear,spur, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.

What part numbers are listed for NSN 3020-00-256-2181?

NSN 3020-00-256-2181 has 1 manufacturer part number on file: 122366PC30 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What are the specifications of 122366PC30?

Key specifications for 122366PC30: Bore Nominal Diameter: 0.375 INCHES BOTH ENDS IN; Teeth Quantity: 30; Body Style: PLAIN, SOLID; Bore Style: PLAIN BOTH ENDS. 12 specifications are documented in the U.S. Government catalog.

Is NSN 3020-00-256-2181 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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