PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40591Gear,helical

Prince Alexander Partners Inc Div Architecture Engieering and Economic Development · NSN 3020-00-118-5217 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-118-5217 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-118-5217. Primary manufacturer part number: 40591.
Features
  • Gear,helical — FSC 3020
  • Pitch Diameter: 1.6880 INCHES NOMINAL IN
  • Attachment Method: MOUNTING HOLE
  • Nominal Overall Length: 0.452 INCHES IN
  • Body Style: PLAIN, SOLID
  • Nominal Outside Diameter: 1.8135 INCHES IN
  • Hardness Rating: 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
  • Hub Style Designator: PLAIN FIRST END
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Gear,helical, cataloged under National Stock Number 3020-00-118-5217, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Prince Alexander Partners Inc Div Architecture Engieering and Economic Development. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-118-5217
Primary Part Number40591
Item NameGear,helical
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerPrince Alexander Partners Inc Div Architecture Engieering and Economic Development
StatusACTIVE
Pitch Diameter1.6880 INCHES NOMINAL IN
Attachment MethodMOUNTING HOLE
Nominal Overall Length0.452 INCHES IN
Body StylePLAIN, SOLID
Nominal Outside Diameter1.8135 INCHES IN
Hardness Rating28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
Hub Style DesignatorPLAIN FIRST END
Tooth FormSTANDARD
Mounting Hole Type and Quantity2 PLAIN TRANSVERSELY THROUGH HUB FIRST END
Face Nominal Width0.375 INCHES IN
Style DesignatorPROTRUDING HUB
Bore StyleTAPERED SECOND END
Mounting Hole Nominal Diameter0.136 INCHES TRANSVERSELY THROUGH HUB FIRST END IN
MaterialSTEEL CORROSION RESISTING OVERALL
Taper Major Nominal Diameter0.472 INCHES BOTH ENDS IN
Helix Angle38.1500 DEGREES
Teeth TypeSINGLE HELIX
Pressure Angle14.5000 DEGREES
Tooth DirectionRIGHT
Nominal Distance Between Body Face and Protruding Hub End0.076 INCHES FIRST END IN
Hub Nominal Diameter0.9062 INCHES FIRST END IN
Teeth Quantity21
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3020-00-288-5598 INTERCHANGEABLE
Gear,bevel
5935-00-295-31295262 INTERCHANGEABLE
Connector,receptacle,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5930-00-463-27809003 INTERCHANGEABLE
Switch,sensitive
Cole Hersee Company
5820-00-881-4706 INTERCHANGEABLE
Panel Assy,patch
5310-00-917-28888063-09-00-4102 INTERCHANGEABLE
Washer,special
Illinois Tool Works Inc Fastex Div
5330-01-290-34644059-1 INTERCHANGEABLE
Retainer,packing
Hamilton Sundstrand Corporation
Cross-Reference Index
Part NumberManufacturer
40591 Prince Alexander Partners Inc Div Architecture Engieering and Economic Development (USA)
Related Parts
3020-00-288-5598INTERCHANGEABLE
GEAR,BEVEL
5935-00-295-3129INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5262
5930-00-463-2780INTERCHANGEABLE
SWITCH,SENSITIVE
9003
5820-00-881-4706INTERCHANGEABLE
PANEL ASSY,PATCH
5310-00-917-2888INTERCHANGEABLE
WASHER,SPECIAL
8063-09-00-4102
5330-01-290-3464INTERCHANGEABLE
RETAINER,PACKING
4059-1

Frequently Asked Questions

What is NSN 3020-00-118-5217?

NSN 3020-00-118-5217 is a Gear,helical, manufactured by Prince Alexander Partners Inc Div Architecture Engieering and Economic Development, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-118-5217?

NSN 3020-00-118-5217 has 1 cross-referenced part number: 40591 (Prince Alexander Partners Inc Div Architecture Engieering and Economic Development).

What NSN replaces 3020-00-118-5217?

There are 6 known substitutes for 3020-00-118-5217: 3020-00-288-5598, 5935-00-295-3129, 5930-00-463-2780 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40591?

Key specifications for 40591: Pitch Diameter: 1.6880 INCHES NOMINAL IN; Attachment Method: MOUNTING HOLE; Nominal Overall Length: 0.452 INCHES IN; Body Style: PLAIN, SOLID. 22 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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