PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NA140Gear,spur

Altra Industrial Motion Corp. · NSN 3020-01-052-9735 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-052-9735 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-052-9735. Primary manufacturer part number: NA140.
Features
  • Gear,spur — FSC 3020
  • Face Nominal Width: 0.375 INCHES IN
  • Hub Style Designator: PLAIN BOTH ENDS
  • Material: IRON CAST OVERALL
  • Tooth Form: STANDARD
  • Nominal Outside Diameter: 7.100 INCHES IN
  • Bore Nominal Diameter: 0.500 INCHES BOTH ENDS IN
  • Nominal Distance Between Body Face and Protruding Hub End: 0.500 INCHES FIRST END IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Iron Cast Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-01-052-9735, 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 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-01-052-9735
Primary Part NumberNA140
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerAltra Industrial Motion Corp.
StatusACTIVE
Face Nominal Width0.375 INCHES IN
Hub Style DesignatorPLAIN BOTH ENDS
MaterialIRON CAST OVERALL
Tooth FormSTANDARD
Nominal Outside Diameter7.100 INCHES IN
Bore Nominal Diameter0.500 INCHES BOTH ENDS IN
Nominal Distance Between Body Face and Protruding Hub End0.500 INCHES FIRST END IN
Pressure Angle14.5000 DEGREES
Hub Nominal Diameter0.500 INCHES BOTH ENDS IN
Style DesignatorONE PROTRUDING HUB, ONE FLUSH HUB
Bore StylePLAIN BOTH ENDS
Body StyleSPOKED
Teeth Quantity140
Pitch Diameter7.0000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-047-3896 INTERCHANGEABLE
Setscrew
3110-00-076-238866187-66462 INTERCHANGEABLE
Bearing,roller,tapered
The Timken Corporation
4820-00-116-28331023-L INTERCHANGEABLE
Disk,valve
Tescom Corp Dba Tescom Div Tescom
3120-00-432-784110234-1 INTERCHANGEABLE
Bushing,sleeve
The Dewey Electronics Corporation
5305-00-728-6308MS51966-48 INTERCHANGEABLE
Setscrew
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4030-00-880-258010234 INTERCHANGEABLE
Swivel Assembly,jaw
Astrocom Electronics Inc
5999-00-900-067810234 INTERCHANGEABLE
Contact,electrical
Symetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace
7045-01-006-0822 INTERCHANGEABLE
Tape Eraser,bulk
5310-01-016-9345B1575-5/16 INTERCHANGEABLE
Nut,plain,hexagon
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
5985-01-043-498710179236 INTERCHANGEABLE
Waveguide Assembly
Us Army Aviation and Missile Command
Cross-Reference Index
Part NumberManufacturer
NA140 PRIMARY Altra Industrial Motion Corp. (USA)
10234 Altra Industrial Motion Corp. (USA)
Related Parts
5305-00-047-3896INTERCHANGEABLE
SETSCREW
3110-00-076-2388INTERCHANGEABLE
BEARING,ROLLER,TAPERED
66187-66462
4820-00-116-2833INTERCHANGEABLE
DISK,VALVE
1023-L
3120-00-432-7841INTERCHANGEABLE
BUSHING,SLEEVE
10234-1
5305-00-728-6308INTERCHANGEABLE
SETSCREW
MS51966-48
4030-00-880-2580INTERCHANGEABLE
SWIVEL ASSEMBLY,JAW
10234
5999-00-900-0678INTERCHANGEABLE
CONTACT,ELECTRICAL
10234
7045-01-006-0822INTERCHANGEABLE
TAPE ERASER,BULK
5310-01-016-9345INTERCHANGEABLE
NUT,PLAIN,HEXAGON
B1575-5/16
5985-01-043-4987INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
10179236
5910-01-230-6265INTERCHANGEABLE
CAPACITOR
102-34
5962-01-248-2335INTERCHANGEABLE
MICROCIRCUIT,DIGITAL

Frequently Asked Questions

What is NSN 3020-01-052-9735?

NSN 3020-01-052-9735 is a Gear,spur, manufactured by Altra Industrial Motion Corp., classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-01-052-9735?

NSN 3020-01-052-9735 has 2 cross-referenced part numbers: NA140 (Altra Industrial Motion Corp.), 10234 (Altra Industrial Motion Corp.).

What NSN replaces 3020-01-052-9735?

There are 12 known substitutes for 3020-01-052-9735: 5305-00-047-3896, 3110-00-076-2388, 4820-00-116-2833 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NA140?

Key specifications for NA140: Face Nominal Width: 0.375 INCHES IN; Hub Style Designator: PLAIN BOTH ENDS; Material: IRON CAST OVERALL; Tooth Form: STANDARD. 14 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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