PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

540-8872-002Gear,spur

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems · NSN 3020-00-555-8831 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-555-8831 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-555-8831. Primary manufacturer part number: 540-8872-002.
Features
  • Gear,spur — FSC 3020
  • Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Bore Style: PLAIN BOTH ENDS
  • Style Designator: PROTRUDING HUBS
  • Nominal Outside Diameter: 1.1400 INCHES IN
  • Pressure Angle: 20.0000 DEGREES
  • Hub Style Designator: PLAIN BOTH ENDS
  • Surface Treatment: PASSIVATE OVERALL
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-555-8831, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN3020-00-555-8831
Primary Part Number540-8872-002
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerRockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
StatusACTIVE
Material Document and ClassificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Bore StylePLAIN BOTH ENDS
Style DesignatorPROTRUDING HUBS
Nominal Outside Diameter1.1400 INCHES IN
Pressure Angle20.0000 DEGREES
Hub Style DesignatorPLAIN BOTH ENDS
Surface TreatmentPASSIVATE OVERALL
Nominal Distance Between Body Face and Protruding Hub End0.1160 INCHES FIRST END IN
Pitch Diameter1.1094 INCHES NOMINAL IN
Body StylePLAIN, SOLID
Teeth Quantity71
Tooth FormSTANDARD
Hub Nominal Diameter0.5000 INCHES BOTH ENDS IN
Nominal Distance Between Body Face and Protruding Hub End0.062 INCHES SECOND END IN
Face Nominal Width0.094 INCHES IN
Bore Nominal Diameter0.3750 INCHES BOTH ENDS IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5136-00-585-6760 INTERCHANGEABLE
Tap,thread Cutting
Cross-Reference Index
Part NumberManufacturer
444119660 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
119660 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
540-8872-002 PRIMARY Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
Related Parts
5136-00-585-6760INTERCHANGEABLE
TAP,THREAD CUTTING

Frequently Asked Questions

What is NSN 3020-00-555-8831?

NSN 3020-00-555-8831 is a Gear,spur, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-555-8831?

NSN 3020-00-555-8831 has 3 cross-referenced part numbers: 444119660 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 119660 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 540-8872-002 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).

What NSN replaces 3020-00-555-8831?

There is 1 known substitute for 3020-00-555-8831: 5136-00-585-6760. Verify interchangeability with system specifications before substitution.

What are the specifications of 540-8872-002?

Key specifications for 540-8872-002: Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Special Features: COUNTERSUNK 90 DEGREE 2D END; Bore Style: PLAIN BOTH ENDS; Style Designator: PROTRUDING HUBS. 18 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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