PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

52520-1Hub,body

Momentum Technologies Inc · NSN 3040-00-075-6656 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-075-6656 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-075-6656. Primary manufacturer part number: 52520-1.
Features
  • Hub,body — FSC 3040
  • Shoulder Outside Diameter: 1.630 INCHES NOMINAL IN
  • Style Designator: DOUBLE HUB, SPLIT AND SOLID
  • First End Hub Outside Diameter: 0.750 INCHES NOMINAL IN
  • Second End Hub Outside Diameter: 1.240 INCHES NOMINAL IN
  • Hub Inside Diameter: 0.243 INCHES NOMINAL IN
  • Material: STEEL
  • Distance From Second End Hub to Shoulder: 0.255 INCHES NOMINAL IN
Applications
  • Applications requiring Steel construction
General Description

The Hub,body, cataloged under National Stock Number 3040-00-075-6656, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Momentum Technologies Inc. Government technical data includes 9 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-00-075-6656
Primary Part Number52520-1
Item NameHub,body
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerMomentum Technologies Inc
StatusACTIVE
Shoulder Outside Diameter1.630 INCHES NOMINAL IN
Style DesignatorDOUBLE HUB, SPLIT AND SOLID
First End Hub Outside Diameter0.750 INCHES NOMINAL IN
Second End Hub Outside Diameter1.240 INCHES NOMINAL IN
Hub Inside Diameter0.243 INCHES NOMINAL IN
MaterialSTEEL
Distance From Second End Hub to Shoulder0.255 INCHES NOMINAL IN
Shoulder Width0.098 INCHES NOMINAL IN
Distance From First End Hub to Shoulder0.335 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4710-00-040-0341525201 INTERCHANGEABLE
Tube,bent,metallic
Renk America Llc Div Renk America
5962-01-371-318852520-1 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Div Rmd Strategic
Cross-Reference Index
Part NumberManufacturer
52520-1 Momentum Technologies Inc (USA)
Related Parts
4710-00-040-0341INTERCHANGEABLE
TUBE,BENT,METALLIC
525201
5962-01-371-3188INTERCHANGEABLE
MICROCIRCUIT,MEMORY
52520-1

Frequently Asked Questions

What is NSN 3040-00-075-6656?

NSN 3040-00-075-6656 is a Hub,body, manufactured by Momentum Technologies Inc, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-00-075-6656?

NSN 3040-00-075-6656 has 1 cross-referenced part number: 52520-1 (Momentum Technologies Inc).

What NSN replaces 3040-00-075-6656?

There are 2 known substitutes for 3040-00-075-6656: 4710-00-040-0341, 5962-01-371-3188. Verify interchangeability with system specifications before substitution.

What are the specifications of 52520-1?

Key specifications for 52520-1: Special Features: ATTACHMENT METHOD:MACHINE;O/A LENGTH:1.453 IN.NOM IN; Shoulder Outside Diameter: 1.630 INCHES NOMINAL IN; Style Designator: DOUBLE HUB, SPLIT AND SOLID; First End Hub Outside Diameter: 0.750 INCHES NOMINAL IN. 10 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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