PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

L101YGear,bevel

Altra Industrial Motion Corp. · NSN 3020-00-489-5118 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-489-5118 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-489-5118. Primary manufacturer part number: L101Y.
Features
  • Gear,bevel — FSC 3020
  • Attachment Method: MOUNTING HOLE
  • Body Style: PLAIN, SOLID
  • Style Designator: PERIPHERAL FACE, BACK HUB PROTRUDING
  • Mounting Hole Type and Quantity: 1 PLAIN TRANSVERSELY THROUGH HUB FIRST END
  • Hub Style Designator: PLAIN SECOND END
  • Nominal Overall Length: 0.859 INCHES IN
  • Bore Style: PLAIN BOTH ENDS
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Overall construction
General Description

The Gear,bevel, cataloged under National Stock Number 3020-00-489-5118, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Altra Industrial Motion Corp.. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3020-00-489-5118
Primary Part NumberL101Y
Item NameGear,bevel
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerAltra Industrial Motion Corp.
StatusCANCELLED
Attachment MethodMOUNTING HOLE
Body StylePLAIN, SOLID
Style DesignatorPERIPHERAL FACE, BACK HUB PROTRUDING
Mounting Hole Type and Quantity1 PLAIN TRANSVERSELY THROUGH HUB FIRST END
Hub Style DesignatorPLAIN SECOND END
Nominal Overall Length0.859 INCHES IN
Bore StylePLAIN BOTH ENDS
Face Nominal Width0.270 INCHES IN
MaterialSTEEL OVERALL
Bore Nominal Diameter0.500 INCHES BOTH ENDS IN
Hub Nominal Diameter1.000 INCHES SECOND END IN
Mounting Hole Nominal Diameter0.187 INCHES TRANSVERSELY THROUGH HUB FIRST END IN
Nominal Distance Between Body Face and Protruding Hub End0.500 INCHES SECOND END IN
Teeth Quantity15
Pitch Diameter1.2500 INCHES NOMINAL IN
Pressure Angle20.0000 DEGREES
Nominal Outside Diameter1.3600 INCHES IN
Teeth TypeSTRAIGHT
Pitch Angle45.0000 DEGREES
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
4730-00-317-42174S26 INTERCHANGEABLE
Coupling Half,quick Disconnect
Tuthill Corp Hansen Coupling Div
5950-00-645-5266K8025 INTERCHANGEABLE
Reactor
Magnetika Inc
Cross-Reference Index
Part NumberManufacturer
23569 Uop Inc Bostrom Div (USA)
M1215B Martin Sprocket and Gear Inc (USA)
L101Y PRIMARY Altra Industrial Motion Corp. (USA)
Related Parts
4730-00-317-4217INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4S26
5950-00-645-5266INTERCHANGEABLE
REACTOR
K8025

Frequently Asked Questions

What is NSN 3020-00-489-5118?

NSN 3020-00-489-5118 is a Gear,bevel, manufactured by Altra Industrial Motion Corp., classified under FSC 3020 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3020-00-489-5118?

NSN 3020-00-489-5118 has 3 cross-referenced part numbers: 23569 (Uop Inc Bostrom Div), M1215B (Martin Sprocket and Gear Inc), L101Y (Altra Industrial Motion Corp.).

What NSN replaces 3020-00-489-5118?

There are 2 known substitutes for 3020-00-489-5118: 4730-00-317-4217, 5950-00-645-5266. Verify interchangeability with system specifications before substitution.

What are the specifications of L101Y?

Key specifications for L101Y: Attachment Method: MOUNTING HOLE; Body Style: PLAIN, SOLID; Style Designator: PERIPHERAL FACE, BACK HUB PROTRUDING; Mounting Hole Type and Quantity: 1 PLAIN TRANSVERSELY THROUGH HUB FIRST END. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3020-00-489-5118 still in active supply?

NSN 3020-00-489-5118 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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