PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3109-8Gear,spur

Kearfott Corp Div Kearfott Corporation · NSN 3020-00-364-5358 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-364-5358 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-364-5358. Primary manufacturer part number: 3109-8.
Features
  • Gear,spur — FSC 3020
  • Body Style: PLAIN, SOLID
  • Teeth Quantity: 34
  • Pitch Diameter: 0.5312 INCHES NOMINAL IN
  • Style Designator: HUBLESS
  • Material: STEEL COMP 4130 OVERALL
  • Surface Treatment: OXIDE OVERALL
  • Hardness Rating: 38.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 4130 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-364-5358, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Kearfott Corp Div Kearfott Corporation. 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-364-5358
Primary Part Number3109-8
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerKearfott Corp Div Kearfott Corporation
StatusACTIVE
Body StylePLAIN, SOLID
Teeth Quantity34
Pitch Diameter0.5312 INCHES NOMINAL IN
Style DesignatorHUBLESS
MaterialSTEEL COMP 4130 OVERALL
Surface TreatmentOXIDE OVERALL
Hardness Rating38.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
Tooth FormSTANDARD
Face Nominal Width0.156 INCHES IN
Bore StylePLAIN BOTH ENDS
Bore Nominal Diameter0.189 INCHES BOTH ENDS IN
Surface Treatment Document and ClassificationMIL-C-13924,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Nominal Outside Diameter0.560 INCHES IN
Pressure Angle20.0000 DEGREES
Precision ClassificationQUALITY NUMBER 12
Material Document and ClassificationMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5120-00-224-972883 INTERCHANGEABLE
Scriber,machinist's
General Tools Manufacturing Co., Llc.
2925-00-390-7546 INTERCHANGEABLE
Harness Asy Ignitio
1730-01-110-839631098 INTERCHANGEABLE
Ball Socket Housing
Garrison Manufacturing Inc
3020-01-181-857431098-1 INTERCHANGEABLE
Gear,worm
The Dewey Electronics Corporation Div Pitometer Log Division
5305-01-503-7531310-98 INTERCHANGEABLE
Screw,cap,hexagon Head
Crane Carrier Company, Llc
6515-01-614-02585867228940 INTERCHANGEABLE
Retractor,utility
Owens & Minor Distribution Inc
Cross-Reference Index
Part NumberManufacturer
3109-8 PRIMARY Kearfott Corp Div Kearfott Corporation (USA)
3109-8 Fl Aerospace Corp Janitrol Aero Div/general Design (USA)
Related Parts
5120-00-224-9728INTERCHANGEABLE
SCRIBER,MACHINIST'S
83
2925-00-390-7546INTERCHANGEABLE
HARNESS ASY IGNITIO
1730-01-110-8396INTERCHANGEABLE
BALL SOCKET HOUSING
31098
3020-01-181-8574INTERCHANGEABLE
GEAR,WORM
31098-1
5305-01-503-7531INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
310-98
6515-01-614-0258INTERCHANGEABLE
RETRACTOR,UTILITY
5867228940

Frequently Asked Questions

What is NSN 3020-00-364-5358?

NSN 3020-00-364-5358 is a Gear,spur, manufactured by Kearfott Corp Div Kearfott Corporation, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-364-5358?

NSN 3020-00-364-5358 has 2 cross-referenced part numbers: 3109-8 (Kearfott Corp Div Kearfott Corporation), 3109-8 (Fl Aerospace Corp Janitrol Aero Div/general Design).

What NSN replaces 3020-00-364-5358?

There are 6 known substitutes for 3020-00-364-5358: 5120-00-224-9728, 2925-00-390-7546, 1730-01-110-8396 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3109-8?

Key specifications for 3109-8: Body Style: PLAIN, SOLID; Teeth Quantity: 34; Pitch Diameter: 0.5312 INCHES NOMINAL IN; Style Designator: HUBLESS. 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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