PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21790Gear,spur

Elbitamerica, Inc. · NSN 3020-01-420-3310 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-420-3310 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-420-3310. Primary manufacturer part number: 21790.
Features
  • Gear,spur — FSC 3020
  • Face Nominal Width: 0.0400 INCHES IN
  • Material Document and Classification: QQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Nominal Outside Diameter: 0.6458 INCHES IN
  • Style Designator: HUBLESS
  • Teeth Quantity: 60
  • Bore Nominal Diameter: 0.2031 INCHES BOTH ENDS IN
  • Body Style: PLAIN, SOLID
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Bronze Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-01-420-3310, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Elbitamerica, Inc.. Government technical data includes 12 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
NSN3020-01-420-3310
Primary Part Number21790
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerElbitamerica, Inc.
StatusACTIVE
Face Nominal Width0.0400 INCHES IN
Material Document and ClassificationQQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Nominal Outside Diameter0.6458 INCHES IN
Style DesignatorHUBLESS
Teeth Quantity60
Bore Nominal Diameter0.2031 INCHES BOTH ENDS IN
Body StylePLAIN, SOLID
MaterialBRONZE OVERALL
Bore StylePLAIN BOTH ENDS
Precision ClassificationQUALITY NUMBER 11
Pitch Diameter0.6250 INCHES NOMINAL IN
Pressure Angle20.0000 DEGREES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5999-00-086-885921-790 INTERCHANGEABLE
Contact,electrical
Eaton Corp Opns & Technical Center
5330-00-362-1413 INTERCHANGEABLE
Felt,mechanical,preformed
3455-00-580-849421790 INTERCHANGEABLE
Blade,hole Saw
Black and Decker Us Inc
3130-01-039-0205 INTERCHANGEABLE
Cap,pillow Block
Cross-Reference Index
Part NumberManufacturer
21790 PRIMARY Elbitamerica, Inc. (USA)
Related Parts
5999-00-086-8859INTERCHANGEABLE
CONTACT,ELECTRICAL
21-790
5330-00-362-1413INTERCHANGEABLE
FELT,MECHANICAL,PREFORMED
3455-00-580-8494INTERCHANGEABLE
BLADE,HOLE SAW
21790
3130-01-039-0205INTERCHANGEABLE
CAP,PILLOW BLOCK

Frequently Asked Questions

What is NSN 3020-01-420-3310?

NSN 3020-01-420-3310 is a Gear,spur, manufactured by Elbitamerica, Inc., classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-01-420-3310?

NSN 3020-01-420-3310 has 1 cross-referenced part number: 21790 (Elbitamerica, Inc.).

What NSN replaces 3020-01-420-3310?

There are 4 known substitutes for 3020-01-420-3310: 5999-00-086-8859, 5330-00-362-1413, 3455-00-580-8494 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21790?

Key specifications for 21790: Face Nominal Width: 0.0400 INCHES IN; Material Document and Classification: QQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Nominal Outside Diameter: 0.6458 INCHES IN; Style Designator: HUBLESS. 13 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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