PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

26628Shaft,straight

Triumph Thermal Systems - Maryland, Inc. · NSN 3040-00-806-9866 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-806-9866 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-806-9866. Primary manufacturer part number: 26628.
Features
  • Shaft,straight — FSC 3040
  • End Similarity: NOT IDENTICAL
  • First End Diameter: 0.2600 INCHES NOMINAL IN
  • First End Spline Length: 0.750 INCHES NOMINAL IN
  • Material: STEEL COMP 4340
  • First End Style: SPLINED (STRAIGHT)
  • First End Spline Minor Diameter: 0.3438 INCHES NOMINAL IN
  • Second End Style: SPLINED (STRAIGHT)
Applications
  • Applications requiring Steel Comp 4340 construction
General Description

The Shaft,straight, cataloged under National Stock Number 3040-00-806-9866, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Triumph Thermal Systems - Maryland, Inc.. Government technical data includes 7 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
NSN3040-00-806-9866
Primary Part Number26628
Item NameShaft,straight
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerTriumph Thermal Systems - Maryland, Inc.
StatusACTIVE
End SimilarityNOT IDENTICAL
First End Diameter0.2600 INCHES NOMINAL IN
First End Spline Length0.750 INCHES NOMINAL IN
MaterialSTEEL COMP 4340
First End StyleSPLINED (STRAIGHT)
First End Spline Minor Diameter0.3438 INCHES NOMINAL IN
Second End StyleSPLINED (STRAIGHT)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5999-00-653-9184 INTERCHANGEABLE
Heater,thermal Release
5950-00-673-8280672-0978-000 INTERCHANGEABLE
Transformer,power
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5985-01-091-7820C5000255-1 INTERCHANGEABLE
Attenuator,fixed
Department of the Army Hq U S Army Electronics Research and Development Command
5365-01-722-150426-628 INTERCHANGEABLE
Bushing,sleeve
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
Cross-Reference Index
Part NumberManufacturer
26628 PRIMARY Triumph Thermal Systems - Maryland, Inc. (USA)
Related Parts
5999-00-653-9184INTERCHANGEABLE
HEATER,THERMAL RELEASE
5950-00-673-8280INTERCHANGEABLE
TRANSFORMER,POWER
672-0978-000
5985-01-091-7820INTERCHANGEABLE
ATTENUATOR,FIXED
C5000255-1
5365-01-722-1504INTERCHANGEABLE
BUSHING,SLEEVE
26-628

Frequently Asked Questions

What is NSN 3040-00-806-9866?

NSN 3040-00-806-9866 is a Shaft,straight, manufactured by Triumph Thermal Systems - Maryland, Inc., classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-00-806-9866?

NSN 3040-00-806-9866 has 1 cross-referenced part number: 26628 (Triumph Thermal Systems - Maryland, Inc.).

What NSN replaces 3040-00-806-9866?

There are 4 known substitutes for 3040-00-806-9866: 5999-00-653-9184, 5950-00-673-8280, 5985-01-091-7820 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 26628?

Key specifications for 26628: End Similarity: NOT IDENTICAL; Overall Length: 6.445 INCHES NOMINAL IN; First End Diameter: 0.2600 INCHES NOMINAL IN; First End Spline Length: 0.750 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com