PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

54138Gear,spur

Capitol Engine Co, Inc Dba Salmini Worldwide · NSN 3020-00-517-3202 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-517-3202 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-517-3202. Primary manufacturer part number: 54138.
Features
  • Gear,spur — FSC 3020
  • Bore Nominal Diameter: 1.000 INCHES BOTH ENDS IN
  • Pitch Diameter: 1.7500 INCHES NOMINAL IN
  • Material: STEEL COMP 4615 OVERALL
  • Nominal Outside Diameter: 2.017 INCHES IN
  • Bore Style: W/ KEYWAY BOTH ENDS
  • Teeth Quantity: 14
  • Tooth Form: STANDARD
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 4615 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-517-3202, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Capitol Engine Co, Inc Dba Salmini Worldwide. Government technical data includes 16 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-517-3202
Primary Part Number54138
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerCapitol Engine Co, Inc Dba Salmini Worldwide
StatusACTIVE
Bore Nominal Diameter1.000 INCHES BOTH ENDS IN
Pitch Diameter1.7500 INCHES NOMINAL IN
MaterialSTEEL COMP 4615 OVERALL
Nominal Outside Diameter2.017 INCHES IN
Bore StyleW/ KEYWAY BOTH ENDS
Teeth Quantity14
Tooth FormSTANDARD
Material Document and ClassificationFED-STD-66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Keyway Nominal Width0.160 INCHES BOTH ENDS IN
Pressure Angle20.0000 DEGREES
Hardness Rating58.0 ROCKWELL C NOMINAL TEETH
Nominal Distance From Bore Center to Keyway Bottom0.581 INCHES BOTH ENDS IN
Face Nominal Width1.250 INCHES IN
Hardness Rating40.0 ROCKWELL C NOMINAL HUB
Style DesignatorHUBLESS
Body StylePLAIN, SOLID
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5315-00-081-7016MS20392-3C33 INTERCHANGEABLE
Pin,straight,headed
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
3455-00-231-353109620 INTERCHANGEABLE
Cutter,milling,shell End
Niagara Cutter Inc
5940-00-993-6937 INTERCHANGEABLE
Terminal,lug
Cross-Reference Index
Part NumberManufacturer
54138 PRIMARY Capitol Engine Co, Inc Dba Salmini Worldwide (USA)
LN54138 Sasco Inc Canadian Div
Related Parts
5315-00-081-7016INTERCHANGEABLE
PIN,STRAIGHT,HEADED
MS20392-3C33
3455-00-231-3531INTERCHANGEABLE
CUTTER,MILLING,SHELL END
09620
5940-00-993-6937INTERCHANGEABLE
TERMINAL,LUG

Frequently Asked Questions

What is NSN 3020-00-517-3202?

NSN 3020-00-517-3202 is a Gear,spur, manufactured by Capitol Engine Co, Inc Dba Salmini Worldwide, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-517-3202?

NSN 3020-00-517-3202 has 2 cross-referenced part numbers: 54138 (Capitol Engine Co, Inc Dba Salmini Worldwide), LN54138 (Sasco Inc Canadian Div).

What NSN replaces 3020-00-517-3202?

There are 3 known substitutes for 3020-00-517-3202: 5315-00-081-7016, 3455-00-231-3531, 5940-00-993-6937. Verify interchangeability with system specifications before substitution.

What are the specifications of 54138?

Key specifications for 54138: Bore Nominal Diameter: 1.000 INCHES BOTH ENDS IN; Pitch Diameter: 1.7500 INCHES NOMINAL IN; Material: STEEL COMP 4615 OVERALL; Nominal Outside Diameter: 2.017 INCHES IN. 16 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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