PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10991-1Hub,body

Edo · NSN 3040-00-303-5101 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-303-5101 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-303-5101. Primary manufacturer part number: 10991-1.
Features
  • Hub,body — FSC 3040
  • First End Hub Outside Diameter: 3.250 INCHES NOMINAL IN
  • Distance From Second End Hub to Shoulder: 2.874 INCHES NOMINAL IN
  • Material: STEEL
  • Second End Hub Outside Diameter: 2.874 INCHES NOMINAL IN
  • Style Designator: DOUBLE HUB, SPLIT AND SOLID
  • Surface Treatment: PASSIVATE
  • Shoulder Outside Diameter: 7.000 INCHES NOMINAL IN
Applications
  • Applications requiring Steel construction
General Description

The Hub,body, cataloged under National Stock Number 3040-00-303-5101, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Edo. Government technical data includes 11 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-00-303-5101
Primary Part Number10991-1
Item NameHub,body
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerEdo
StatusACTIVE
First End Hub Outside Diameter3.250 INCHES NOMINAL IN
Distance From Second End Hub to Shoulder2.874 INCHES NOMINAL IN
MaterialSTEEL
Second End Hub Outside Diameter2.874 INCHES NOMINAL IN
Style DesignatorDOUBLE HUB, SPLIT AND SOLID
Surface TreatmentPASSIVATE
Shoulder Outside Diameter7.000 INCHES NOMINAL IN
Hub Inside Diameter1.753 INCHES NOMINAL IN
Distance From First End Hub to Shoulder1.443 INCHES NOMINAL IN
Shoulder Width0.380 INCHES NOMINAL IN
Material Document and ClassificationCOMP 303 FED SPEC SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4140-01-063-4852010099 INTERCHANGEABLE
Fan,tubeaxial
Rotron Incorporated
Cross-Reference Index
Part NumberManufacturer
10991-1 Edo (USA)
Related Parts
4140-01-063-4852INTERCHANGEABLE
FAN,TUBEAXIAL
010099

Frequently Asked Questions

What is NSN 3040-00-303-5101?

NSN 3040-00-303-5101 is a Hub,body, manufactured by Edo, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-00-303-5101?

NSN 3040-00-303-5101 has 1 cross-referenced part number: 10991-1 (Edo).

What NSN replaces 3040-00-303-5101?

There is 1 known substitute for 3040-00-303-5101: 4140-01-063-4852. Verify interchangeability with system specifications before substitution.

What are the specifications of 10991-1?

Key specifications for 10991-1: Special Features: ATTACHMENT METHOD:PRESS FIT;O/A LENGTH:2.062 IN.NOM IN; First End Hub Outside Diameter: 3.250 INCHES NOMINAL IN; Distance From Second End Hub to Shoulder: 2.874 INCHES NOMINAL IN; Material: STEEL. 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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