PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

61215Gear,helical

Waterous Company · NSN 3020-00-821-9800 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-821-9800 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-821-9800. Primary manufacturer part number: 61215.
Features
  • Gear,helical — FSC 3020
  • Body Style: PLAIN, SOLID
  • Pitch Diameter: 2.5000 INCHES NOMINAL IN
  • Bore Style: PLAIN BOTH ENDS
  • Teeth Type: SINGLE HELIX
  • Helix Angle: 15.0000 DEGREES
  • Tooth Direction: LEFT
  • Teeth Quantity: 30
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 3020-00-821-9800, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Waterous Company. Government technical data includes 17 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-821-9800
Primary Part Number61215
Item NameGear,helical
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerWaterous Company
StatusACTIVE
Body StylePLAIN, SOLID
Pitch Diameter2.5000 INCHES NOMINAL IN
Bore StylePLAIN BOTH ENDS
Teeth TypeSINGLE HELIX
Helix Angle15.0000 DEGREES
Tooth DirectionLEFT
Teeth Quantity30
Face Nominal Width1.697 INCHES IN
Nominal Outside Diameter2.7350 INCHES IN
Hub Style DesignatorPINNED FIRST END
Tooth FormSTANDARD
MaterialSTEEL OVERALL
Bore Nominal Diameter1.1750 INCHES BOTH ENDS IN
Pressure Angle14.5000 DEGREES
Nominal Distance Between Body Face and Protruding Hub End0.365 INCHES FIRST END IN
Style DesignatorPROTRUDING HUB
Hub Nominal Diameter2.345 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5995-00-184-0096 INTERCHANGEABLE
Cable Assembly,telephone
5955-00-525-5750154029P15 INTERCHANGEABLE
Crystal Unit,quartz
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
6520-00-584-3333061215-000 INTERCHANGEABLE
Wedge Set,dental
Water Pik Inc Dba Waterpik Technologies
7690-01-553-525861215 INTERCHANGEABLE
Marker,identification
Espey Mfg and Electronics Corp
Cross-Reference Index
Part NumberManufacturer
61215 PRIMARY Waterous Company (USA)
Related Parts
5995-00-184-0096INTERCHANGEABLE
CABLE ASSEMBLY,TELEPHONE
5955-00-525-5750INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
154029P15
6520-00-584-3333INTERCHANGEABLE
WEDGE SET,DENTAL
061215-000
7690-01-553-5258INTERCHANGEABLE
MARKER,IDENTIFICATION
61215

Frequently Asked Questions

What is NSN 3020-00-821-9800?

NSN 3020-00-821-9800 is a Gear,helical, manufactured by Waterous Company, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-821-9800?

NSN 3020-00-821-9800 has 1 cross-referenced part number: 61215 (Waterous Company).

What NSN replaces 3020-00-821-9800?

There are 4 known substitutes for 3020-00-821-9800: 5995-00-184-0096, 5955-00-525-5750, 6520-00-584-3333 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 61215?

Key specifications for 61215: Body Style: PLAIN, SOLID; Pitch Diameter: 2.5000 INCHES NOMINAL IN; Bore Style: PLAIN BOTH ENDS; Teeth Type: SINGLE HELIX. 17 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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