PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

37731Gear,spur

Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. · NSN 3020-00-118-5189 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-118-5189 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-118-5189. Primary manufacturer part number: 37731.
Features
  • Gear,spur — FSC 3020
  • Body Style: PLAIN, SOLID
  • Material: STEEL COMP E9310 OVERALL
  • Nominal Overall Length: 1.125 INCHES IN
  • Pressure Angle: 27.0000 DEGREES
  • Nominal Distance Between Body Face and Protruding Hub End: 0.094 INCHES BOTH ENDS IN
  • Hardness Rating: 81.0 ROCKWELL C MINIMUM AND 85.0 ROCKWELL C MAXIMUM OVERALL
  • Spline Pitch Diameter: 15.2308 INCHES NOMINAL BOTH ENDS IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp E9310 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-118-5189, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. Government technical data includes 19 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-118-5189
Primary Part Number37731
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerPratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
StatusACTIVE
Body StylePLAIN, SOLID
MaterialSTEEL COMP E9310 OVERALL
Nominal Overall Length1.125 INCHES IN
Pressure Angle27.0000 DEGREES
Nominal Distance Between Body Face and Protruding Hub End0.094 INCHES BOTH ENDS IN
Hardness Rating81.0 ROCKWELL C MINIMUM AND 85.0 ROCKWELL C MAXIMUM OVERALL
Spline Pitch Diameter15.2308 INCHES NOMINAL BOTH ENDS IN
Face Nominal Width0.937 INCHES IN
Tooth FormSTANDARD
Teeth Quantity108
Pitch Diameter16.4285 INCHES NOMINAL IN
Hub Style DesignatorPLAIN BOTH ENDS
Spline Quantity115 BOTH ENDS
Nominal Outside Diameter16.651 INCHES IN
Bore Nominal Diameter15.463 INCHES BOTH ENDS IN
Hub Nominal Diameter16.125 INCHES BOTH ENDS IN
Bore StyleINVOLUTE SPLINE BOTH ENDS
Material Document and ClassificationAMS 6260 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorPROTRUDING HUBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6210-00-482-959537731 INTERCHANGEABLE
Lens,light
Grimes Aerospace Company
5915-00-881-0286 INTERCHANGEABLE
Filter,band Pass
5365-01-137-9425N37731 INTERCHANGEABLE
Ring
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-305-2201 INTERCHANGEABLE
Stem,fluid Valve
Cross-Reference Index
Part NumberManufacturer
37731 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
37731 PRIMARY Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
Related Parts
6210-00-482-9595INTERCHANGEABLE
LENS,LIGHT
37731
5915-00-881-0286INTERCHANGEABLE
FILTER,BAND PASS
5365-01-137-9425INTERCHANGEABLE
RING
N37731
4820-01-305-2201INTERCHANGEABLE
STEM,FLUID VALVE

Frequently Asked Questions

What is NSN 3020-00-118-5189?

NSN 3020-00-118-5189 is a Gear,spur, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-118-5189?

NSN 3020-00-118-5189 has 2 cross-referenced part numbers: 37731 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 37731 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).

What NSN replaces 3020-00-118-5189?

There are 4 known substitutes for 3020-00-118-5189: 6210-00-482-9595, 5915-00-881-0286, 5365-01-137-9425 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 37731?

Key specifications for 37731: Body Style: PLAIN, SOLID; Material: STEEL COMP E9310 OVERALL; Nominal Overall Length: 1.125 INCHES IN; Pressure Angle: 27.0000 DEGREES. 19 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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