PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40349Gear,spur

Hyster-Yale Group, Inc. · NSN 3020-00-273-4402 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-273-4402 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-273-4402. Primary manufacturer part number: 40349.
Features
  • Gear,spur — FSC 3020
  • Body Style: PLAIN, SOLID
  • Teeth Quantity: 14
  • Hub Style Designator: PLAIN FIRST END
  • Hub Nominal Diameter: 4.469 INCHES FIRST END IN
  • Pitch Diameter: 7.0000 INCHES NOMINAL IN
  • Bore Style: W/ KEYWAY BOTH ENDS
  • Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 4142 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-273-4402, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Hyster-Yale Group, Inc.. Government technical data includes 18 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-273-4402
Primary Part Number40349
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerHyster-Yale Group, Inc.
StatusACTIVE
Body StylePLAIN, SOLID
Teeth Quantity14
Hub Style DesignatorPLAIN FIRST END
Hub Nominal Diameter4.469 INCHES FIRST END IN
Pitch Diameter7.0000 INCHES NOMINAL IN
Bore StyleW/ KEYWAY BOTH ENDS
Hardness Rating40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
Pressure Angle20.0000 DEGREES
Nominal Outside Diameter7.790 INCHES IN
MaterialSTEEL COMP 4142 OVERALL
Material Document and Classification66,AISI/SAE 4142 FED STD SINGLE MATERIAL RESPONSE OVERALL
Keyway Nominal Width0.750 INCHES BOTH ENDS IN
Face Nominal Width2.750 INCHES IN
Bore Nominal Diameter3.1265 INCHES BOTH ENDS IN
Style DesignatorPROTRUDING HUB
Nominal Distance From Bore Center to Keyway Bottom1.183 INCHES BOTH ENDS IN
Nominal Distance Between Body Face and Protruding Hub End0.500 INCHES FIRST END IN
Tooth FormSTANDARD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5961-00-134-5431 INTERCHANGEABLE
Transistor
3040-00-283-22254500-277 INTERCHANGEABLE
Connecting Link,rigid
Tyee Aircraft Inc Div Tyee Aircraft
5915-00-511-8241SM-D-200757 INTERCHANGEABLE
Network,impedance Matching
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5950-00-548-0783C10647-1 INTERCHANGEABLE
Transformer,power
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
3020-00-580-385340349 INTERCHANGEABLE
Gear,helical
Honeywell International Inc. Div Aerospace - Torrance
2915-00-605-156140349-2 INTERCHANGEABLE
Parts Kit,valve,cure Date
Meggitt North Hollywood Inc
5961-01-035-6678 INTERCHANGEABLE
Transistor
4930-01-109-957640349 INTERCHANGEABLE
Follower
Mcneil Ohio Corp
2520-01-201-236840349 INTERCHANGEABLE
Ventilator,rear Axle
Dana Light Axle Products, Llc Dba Dana Light Axle Products
5310-01-246-932781382 INTERCHANGEABLE
Washer
Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
Cross-Reference Index
Part NumberManufacturer
40349 Hyster-Yale Group, Inc. (USA)
81382 Hyster-Yale Group, Inc. (USA)
Related Parts
5961-00-134-5431INTERCHANGEABLE
TRANSISTOR
3040-00-283-2225INTERCHANGEABLE
CONNECTING LINK,RIGID
4500-277
5915-00-511-8241INTERCHANGEABLE
NETWORK,IMPEDANCE MATCHING
SM-D-200757
5950-00-548-0783INTERCHANGEABLE
TRANSFORMER,POWER
C10647-1
3020-00-580-3853INTERCHANGEABLE
GEAR,HELICAL
40349
2915-00-605-1561INTERCHANGEABLE
PARTS KIT,VALVE,CURE DATE
40349-2
5961-01-035-6678INTERCHANGEABLE
TRANSISTOR
4930-01-109-9576INTERCHANGEABLE
FOLLOWER
40349
2520-01-201-2368INTERCHANGEABLE
VENTILATOR,REAR AXLE
40349
5310-01-246-9327INTERCHANGEABLE
WASHER
81382
1670-01-645-2939INTERCHANGEABLE
ADAPTER,TIE DOWN
40349-20

Frequently Asked Questions

What is NSN 3020-00-273-4402?

NSN 3020-00-273-4402 is a Gear,spur, manufactured by Hyster-Yale Group, Inc., classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-273-4402?

NSN 3020-00-273-4402 has 2 cross-referenced part numbers: 40349 (Hyster-Yale Group, Inc.), 81382 (Hyster-Yale Group, Inc.).

What NSN replaces 3020-00-273-4402?

There are 11 known substitutes for 3020-00-273-4402: 5961-00-134-5431, 3040-00-283-2225, 5915-00-511-8241 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40349?

Key specifications for 40349: Body Style: PLAIN, SOLID; Teeth Quantity: 14; Hub Style Designator: PLAIN FIRST END; Hub Nominal Diameter: 4.469 INCHES FIRST END IN. 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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