PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

644-409Shaft,shouldered

Steward Machine Co Inc · NSN 3040-01-291-5271 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-291-5271 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-291-5271. Primary manufacturer part number: 644-409.
Features
  • Shaft,shouldered — FSC 3040
  • Material: STEEL COMP 17-4PH
  • 5 verified cross-references
  • Primary manufacturer: Steward Machine Co Inc
Applications
  • Applications requiring Steel Comp 17-4ph construction
General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-01-291-5271, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Steward Machine Co Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-01-291-5271
Primary Part Number644-409
Item NameShaft,shouldered
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerSteward Machine Co Inc
StatusACTIVE
MaterialSTEEL COMP 17-4PH
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6625-00-405-408660902 INTERCHANGEABLE
Ammeter
Dresser, Llc
6130-00-458-269261-1409 INTERCHANGEABLE
Rectifier,metallic
Rectico, Inc.
5330-00-526-897450374S INTERCHANGEABLE
Seal,plain Encased
Federal-Mogul Corp Government Sales Dept
4440-00-910-1658 INTERCHANGEABLE
Parts Kit,dehydrator
6625-01-072-4430 INTERCHANGEABLE
Test Set,power Supply
4720-01-165-8385331748 INTERCHANGEABLE
Hose,preformed
General Motors Llc Dba General Motors Llc
5945-01-201-9436 INTERCHANGEABLE
Relay,electromagnetic
2825-01-290-7332907-407 INTERCHANGEABLE
Block,turbine
Steward Machine Co Inc
2825-01-290-7333899-580 INTERCHANGEABLE
Lever,plug
Steward Machine Co Inc
4820-01-290-7348 INTERCHANGEABLE
Stem,fluid Valve
Cross-Reference Index
Part NumberManufacturer
644-409 PRIMARY Steward Machine Co Inc (USA)
611-409 Steward Machine Co Inc (USA)
60-902 PIECE 409 Hardie-Tynes Co., Inc. (USA)
644-409 Hardie-Tynes Co., Inc. (USA)
60-902 Hardie-Tynes Co., Inc. (USA)
Related Parts
6625-00-405-4086INTERCHANGEABLE
AMMETER
60902
6130-00-458-2692INTERCHANGEABLE
RECTIFIER,METALLIC
61-1409
5330-00-526-8974INTERCHANGEABLE
SEAL,PLAIN ENCASED
50374S
4440-00-910-1658INTERCHANGEABLE
PARTS KIT,DEHYDRATOR
6625-01-072-4430INTERCHANGEABLE
TEST SET,POWER SUPPLY
4720-01-165-8385INTERCHANGEABLE
HOSE,PREFORMED
331748
5945-01-201-9436INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
2825-01-290-7332INTERCHANGEABLE
BLOCK,TURBINE
907-407
2825-01-290-7333INTERCHANGEABLE
LEVER,PLUG
899-580
4820-01-290-7348INTERCHANGEABLE
STEM,FLUID VALVE
4820-01-290-7361INTERCHANGEABLE
PLUG,ROTARY,VALVE
644-401
3010-01-291-4624INTERCHANGEABLE
COUPLING,SHAFT,RIGID

Frequently Asked Questions

What is NSN 3040-01-291-5271?

NSN 3040-01-291-5271 is a Shaft,shouldered, manufactured by Steward Machine Co Inc, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-291-5271?

NSN 3040-01-291-5271 has 5 cross-referenced part numbers: 644-409 (Steward Machine Co Inc), 611-409 (Steward Machine Co Inc), 60-902 PIECE 409 (Hardie-Tynes Co., Inc.), 644-409 (Hardie-Tynes Co., Inc.), 60-902 (Hardie-Tynes Co., Inc.).

What NSN replaces 3040-01-291-5271?

There are 12 known substitutes for 3040-01-291-5271: 6625-00-405-4086, 6130-00-458-2692, 5330-00-526-8974 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 644-409?

Key specifications for 644-409: Material: STEEL COMP 17-4PH. 1 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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