PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1851270Gear,spur

Northrop Grumman Systems Corporation · NSN 3020-00-710-8133 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-710-8133 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-710-8133. Primary manufacturer part number: 1851270.
Features
  • Gear,spur — FSC 3020
  • Bore Style: PLAIN BOTH ENDS
  • Hub Nominal Diameter: 0.375 INCHES FIRST END IN
  • Face Nominal Width: 0.312 INCHES IN
  • Style Designator: PROTRUDING HUB
  • Hub Style Designator: PLAIN FIRST END
  • Pitch Diameter: 0.8330 INCHES NOMINAL IN
  • Teeth Quantity: 40
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 303 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-710-8133, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-710-8133
Primary Part Number1851270
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation
StatusACTIVE
Bore StylePLAIN BOTH ENDS
Hub Nominal Diameter0.375 INCHES FIRST END IN
Face Nominal Width0.312 INCHES IN
Style DesignatorPROTRUDING HUB
Hub Style DesignatorPLAIN FIRST END
Pitch Diameter0.8330 INCHES NOMINAL IN
Teeth Quantity40
Body StylePLAIN, SOLID
Nominal Outside Diameter0.8735 INCHES IN
Material Document and ClassificationQQ-S-763,CLASS 303,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Nominal Distance Between Body Face and Protruding Hub End0.250 INCHES FIRST END IN
Pressure Angle14.5000 DEGREES
Tooth FormSTANDARD
MaterialSTEEL COMP 303 OVERALL
Bore Nominal Diameter0.188 INCHES BOTH ENDS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4730-00-844-1379SAE J514 6-6 140237C INTERCHANGEABLE
Elbow,pipe
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
1876433RHPC45 Northrop Grumman Systems Corporation (USA)
1851270 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
1876433RHPC45 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
1851270 PRIMARY Northrop Grumman Systems Corporation (USA)
Related Parts
4730-00-844-1379INTERCHANGEABLE
ELBOW,PIPE
SAE J514 6-6 140237C

Frequently Asked Questions

What is NSN 3020-00-710-8133?

NSN 3020-00-710-8133 is a Gear,spur, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-710-8133?

NSN 3020-00-710-8133 has 4 cross-referenced part numbers: 1876433RHPC45 (Northrop Grumman Systems Corporation), 1851270 (Lockheed Martin Corporation Div Rms - Mitchel Field), 1876433RHPC45 (Lockheed Martin Corporation Div Rms - Mitchel Field), 1851270 (Northrop Grumman Systems Corporation).

What NSN replaces 3020-00-710-8133?

There is 1 known substitute for 3020-00-710-8133: 4730-00-844-1379. Verify interchangeability with system specifications before substitution.

What are the specifications of 1851270?

Key specifications for 1851270: Bore Style: PLAIN BOTH ENDS; Hub Nominal Diameter: 0.375 INCHES FIRST END IN; Face Nominal Width: 0.312 INCHES IN; Style Designator: PROTRUDING HUB. 16 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com