PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

648698Gear,helical

Wesco Distribution, Inc. Dba Wesco Distribution Div Dayton Oh · NSN 3020-00-517-2965 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-517-2965 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-517-2965. Primary manufacturer part number: 648698.
Features
  • Gear,helical — FSC 3020
  • Pitch Diameter: 4.3288 INCHES NOMINAL IN
  • Teeth Quantity: 40
  • Body Style: PLAIN, SOLID
  • Teeth Type: SINGLE HELIX
  • Tooth Direction: RIGHT
  • Material: STEEL OVERALL
  • Face Nominal Width: 2.375 INCHES IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Overall construction
General Description

The Gear,helical, cataloged under National Stock Number 3020-00-517-2965, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Wesco Distribution, Inc. Dba Wesco Distribution Div Dayton Oh. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-517-2965
Primary Part Number648698
Item NameGear,helical
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerWesco Distribution, Inc. Dba Wesco Distribution Div Dayton Oh
StatusACTIVE
Pitch Diameter4.3288 INCHES NOMINAL IN
Teeth Quantity40
Body StylePLAIN, SOLID
Teeth TypeSINGLE HELIX
Tooth DirectionRIGHT
MaterialSTEEL OVERALL
Face Nominal Width2.375 INCHES IN
Style DesignatorHUBLESS
Nominal Distance From Bore Center to Keyway Bottom0.7660 INCHES BOTH ENDS IN
Keyway Nominal Width0.250 INCHES BOTH ENDS IN
Material Document and ClassificationMIL-S-890,CLASS BS MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Nominal Outside Diameter4.5688 INCHES IN
Bore StyleW/ KEYWAY BOTH ENDS
Helix Angle22.4757 DEGREES
Pressure Angle14.5000 DEGREES
Bore Nominal Diameter3.1250 INCHES BOTH ENDS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5930-00-538-52168747K5 INTERCHANGEABLE
Switch,toggle
Safran Power Usa, Llc
5330-00-842-8250CA3960 INTERCHANGEABLE
Gasket
Stillman Seal Corporation Div Stillman Seal Corperation
Cross-Reference Index
Part NumberManufacturer
648698 Westinghouse Electric Corp (USA)
S648698 Westinghouse Electric Corp Control Business Unit
S648698 Westinghouse Electric Corp (USA)
S-648698 Homewood Products Corp (USA)
648698 Westinghouse Electric Corp Control Business Unit
648698 PRIMARY Wesco Distribution, Inc. Dba Wesco Distribution Div Dayton Oh (USA)
648698 Nuttall Gear L L C (USA)
Related Parts
5930-00-538-5216INTERCHANGEABLE
SWITCH,TOGGLE
8747K5
5330-00-842-8250INTERCHANGEABLE
GASKET
CA3960

Frequently Asked Questions

What is NSN 3020-00-517-2965?

NSN 3020-00-517-2965 is a Gear,helical, manufactured by Wesco Distribution, Inc. Dba Wesco Distribution Div Dayton Oh, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-517-2965?

NSN 3020-00-517-2965 has 7 cross-referenced part numbers: 648698 (Westinghouse Electric Corp), S648698 (Westinghouse Electric Corp Control Business Unit), S648698 (Westinghouse Electric Corp), S-648698 (Homewood Products Corp), 648698 (Westinghouse Electric Corp Control Business Unit) and 2 more.

What NSN replaces 3020-00-517-2965?

There are 2 known substitutes for 3020-00-517-2965: 5930-00-538-5216, 5330-00-842-8250. Verify interchangeability with system specifications before substitution.

What are the specifications of 648698?

Key specifications for 648698: Pitch Diameter: 4.3288 INCHES NOMINAL IN; Teeth Quantity: 40; Body Style: PLAIN, SOLID; Teeth Type: SINGLE HELIX. 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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