PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

63-8-21Gear,main Shaft Ove

Dana Corp Spicer Transmission Div · NSN 3020-00-347-4589 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-347-4589 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-347-4589. Primary manufacturer part number: 63-8-21.
Features
  • Gear,main Shaft Ove — FSC 3020
  • 4 verified cross-references
  • Primary manufacturer: Dana Corp Spicer Transmission Div
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear,main Shaft Ove, cataloged under National Stock Number 3020-00-347-4589, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Dana Corp Spicer Transmission Div. This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameGear,main Shaft Ove
FSC / FSG3020 — No Item Name Available (FSG 30)
ManufacturersKersey / American Lafrance a Div of Figgie International Inc (CAGE 02413); Dana Corp Spicer Transmission Div (CAGE 95019); Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (CAGE 92679)
Technical Specifications
ParameterValue
NSN3020-00-347-4589
Primary Part Number63-8-21
Item NameGear,main Shaft Ove
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerDana Corp Spicer Transmission Div
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4820-00-115-244663821 INTERCHANGEABLE
Seat,valve
Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company
5310-00-226-5980 INTERCHANGEABLE
Washer,key
Cross-Reference Index
Part NumberManufacturer
62-8-52 Kersey / American Lafrance a Div of Figgie International Inc (USA)
62-8-52 Dana Corp Spicer Transmission Div (USA)
347683C1 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
63-8-21 PRIMARY Dana Corp Spicer Transmission Div (USA)
Related Parts
4820-00-115-2446INTERCHANGEABLE
SEAT,VALVE
63821
5310-00-226-5980INTERCHANGEABLE
WASHER,KEY

Frequently Asked Questions

What is NSN 3020-00-347-4589?

NSN 3020-00-347-4589 is a Gear,main Shaft Ove, manufactured by Dana Corp Spicer Transmission Div, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-347-4589?

NSN 3020-00-347-4589 has 4 cross-referenced part numbers: 62-8-52 (Kersey / American Lafrance a Div of Figgie International Inc), 62-8-52 (Dana Corp Spicer Transmission Div), 347683C1 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), 63-8-21 (Dana Corp Spicer Transmission Div).

What NSN replaces 3020-00-347-4589?

There are 2 known substitutes for 3020-00-347-4589: 4820-00-115-2446, 5310-00-226-5980. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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