PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

G151Gear,spur

Altra Industrial Motion Corp. · NSN 3020-00-273-3770 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-273-3770 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-273-3770. Primary manufacturer part number: G151.
Features
  • Gear,spur — FSC 3020
  • Nominal Outside Diameter: 4.042 INCHES IN
  • Face Nominal Width: 0.025 INCHES IN
  • Pitch Diameter: 4.0000 INCHES NOMINAL IN
  • Bore Nominal Diameter: 0.312 INCHES BOTH ENDS IN
  • Style Designator: ONE PROTRUDING HUB, ONE FLUSH HUB
  • Material: COPPER ALLOY OVERALL
  • Hub Style Designator: PLAIN BOTH ENDS
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Copper Alloy Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-273-3770, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3020-00-273-3770
Primary Part NumberG151
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerAltra Industrial Motion Corp.
StatusCANCELLED
Nominal Outside Diameter4.042 INCHES IN
Face Nominal Width0.025 INCHES IN
Pitch Diameter4.0000 INCHES NOMINAL IN
Bore Nominal Diameter0.312 INCHES BOTH ENDS IN
Style DesignatorONE PROTRUDING HUB, ONE FLUSH HUB
MaterialCOPPER ALLOY OVERALL
Hub Style DesignatorPLAIN BOTH ENDS
Nominal Distance Between Body Face and Protruding Hub End0.313 INCHES FIRST END IN
Pressure Angle14.5000 DEGREES
Hub Nominal Diameter0.625 INCHES BOTH ENDS IN
Tooth FormSTANDARD
Bore StylePLAIN BOTH ENDS
Teeth Quantity192
Body StyleSPOKED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5355-00-454-6020G151 INTERCHANGEABLE
Knob
Northrop Grumman Systems Corporation
6680-00-526-8366 INTERCHANGEABLE
Indicator,sight,liquid
6515-01-092-5856G151 INTERCHANGEABLE
Bridge,endoscopic Instrument,uro
Gyrus Acmi L.p. Dba Circon-Acmi Div
5935-01-223-9822G15-1 INTERCHANGEABLE
Shell,electrical Connector
Glenair, Inc.
3020-01-327-600740301-01 INTERCHANGEABLE
Gear,spur
Aps Systems, Inc Dba Eidal International Corp
Cross-Reference Index
Part NumberManufacturer
A91-382 Columbia Scientific Corp (USA)
G151 PRIMARY Altra Industrial Motion Corp. (USA)
Related Parts
5355-00-454-6020INTERCHANGEABLE
KNOB
G151
6680-00-526-8366INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
6515-01-092-5856INTERCHANGEABLE
BRIDGE,ENDOSCOPIC INSTRUMENT,URO
G151
5935-01-223-9822INTERCHANGEABLE
SHELL,ELECTRICAL CONNECTOR
G15-1
3020-01-327-6007INTERCHANGEABLE
GEAR,SPUR
40301-01

Frequently Asked Questions

What is NSN 3020-00-273-3770?

NSN 3020-00-273-3770 is a Gear,spur, manufactured by Altra Industrial Motion Corp., classified under FSC 3020 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3020-00-273-3770?

NSN 3020-00-273-3770 has 2 cross-referenced part numbers: A91-382 (Columbia Scientific Corp), G151 (Altra Industrial Motion Corp.).

What NSN replaces 3020-00-273-3770?

There are 5 known substitutes for 3020-00-273-3770: 5355-00-454-6020, 6680-00-526-8366, 6515-01-092-5856 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of G151?

Key specifications for G151: Nominal Outside Diameter: 4.042 INCHES IN; Face Nominal Width: 0.025 INCHES IN; Pitch Diameter: 4.0000 INCHES NOMINAL IN; Bore Nominal Diameter: 0.312 INCHES BOTH ENDS IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3020-00-273-3770 still in active supply?

NSN 3020-00-273-3770 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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