PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

628912Gearshaft,spur

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp · NSN 3040-00-815-7839 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-815-7839 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-815-7839. Primary manufacturer part number: 628912.
Features
  • Gearshaft,spur — FSC 3040
  • Teeth Quantity: 116
  • Longer Shaft Segment Length: 0.349 INCHES NOMINAL IN
  • Gear Material: ALUMINUM ALLOY 2024
  • Shaft Material: ALUMINUM ALLOY 2024
  • Gear Location on Shaft: OFF CENTER BETWEEN ENDS OF SHAFT
  • Shaft End Type: CIRCULAR GROOVED
  • Shaft End Size: 0.105 INCHES IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Gearshaft,spur, cataloged under National Stock Number 3040-00-815-7839, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 13 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
NSN3040-00-815-7839
Primary Part Number628912
Item NameGearshaft,spur
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
StatusACTIVE
Teeth Quantity116
Longer Shaft Segment Length0.349 INCHES NOMINAL IN
Gear MaterialALUMINUM ALLOY 2024
Shaft MaterialALUMINUM ALLOY 2024
Gear Location on ShaftOFF CENTER BETWEEN ENDS OF SHAFT
Shaft End TypeCIRCULAR GROOVED
Shaft End Size0.105 INCHES IN
Face Width0.065 INCHES NOMINAL IN
Diametral Pitch120
Pressure Angle20.0000 DEGREES
Gear Outside Diameter0.983 INCHES NOMINAL IN
Shaft Largest Diameter0.160 INCHES NOMINAL IN
Shaft TypeSHOULDERED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5340-00-319-3844628912 INTERCHANGEABLE
Seat,helical Compression Spring
Hamilton Sundstrand Corporation
2940-01-245-0061004122V040 INTERCHANGEABLE
Air Cleaner,intake
Kovatch Corp.
Cross-Reference Index
Part NumberManufacturer
628912 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Related Parts
5340-00-319-3844INTERCHANGEABLE
SEAT,HELICAL COMPRESSION SPRING
628912
2940-01-245-0061INTERCHANGEABLE
AIR CLEANER,INTAKE
004122V040

Frequently Asked Questions

What is NSN 3040-00-815-7839?

NSN 3040-00-815-7839 is a Gearshaft,spur, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-00-815-7839?

NSN 3040-00-815-7839 has 1 cross-referenced part number: 628912 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).

What NSN replaces 3040-00-815-7839?

There are 2 known substitutes for 3040-00-815-7839: 5340-00-319-3844, 2940-01-245-0061. Verify interchangeability with system specifications before substitution.

What are the specifications of 628912?

Key specifications for 628912: Overall Length: 0.628 INCHES NOMINAL IN; Teeth Quantity: 116; Longer Shaft Segment Length: 0.349 INCHES NOMINAL IN; Gear Material: ALUMINUM ALLOY 2024. 14 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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