PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21221-1001-1Shaft,shouldered

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace · NSN 3040-01-416-5961 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-416-5961 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-416-5961. Primary manufacturer part number: 21221-1001-1.
Features
  • Shaft,shouldered — FSC 3040
  • Material Document and Classification: -ASTM 582 ASSN STD SINGLE MATERIAL RESPONSE
  • Material: STEEL COMP 416
  • 4 verified cross-references
  • Primary manufacturer: Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Applications
  • Applications requiring Steel Comp 416 construction
General Description

The Shaft,shouldered, cataloged under National Stock Number 3040-01-416-5961, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-01-416-5961
Primary Part Number21221-1001-1
Item NameShaft,shouldered
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerSargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
StatusACTIVE
Material Document and Classification-ASTM 582 ASSN STD SINGLE MATERIAL RESPONSE
MaterialSTEEL COMP 416
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
3120-00-367-179321221 INTERCHANGEABLE
Bearing,sleeve
Industrial Technologies and Services Llc
6685-00-453-7109 INTERCHANGEABLE
Thermocouple,immersion
5315-00-758-731021221 INTERCHANGEABLE
Pin,shoulder,headless
Mason Electric Co. Dba Mason Controls
3040-01-033-777621221 INTERCHANGEABLE
Shaft,drive,flexible
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
5342-01-144-3429531368-3 INTERCHANGEABLE
Clamp Assy,swing
Raytheon Company Dba Raytheon
4810-01-270-235321221 INTERCHANGEABLE
Actuator,electromechanical,rotar
Mark Industries
3450-01-412-643621221 INTERCHANGEABLE
Threading Machine,pipe and Bolt
Curtis-Toledo, Inc.
4820-01-416-457821221-001 INTERCHANGEABLE
Valve,linear,directional Control
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
3040-01-416-595921221-1002-1 INTERCHANGEABLE
Shaft,shouldered
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
5133-01-443-308021221 INTERCHANGEABLE
Drill,twist
Time Fastener Co Inc
Cross-Reference Index
Part NumberManufacturer
21221-1001-1 PRIMARY Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21221 FIND 10 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21221-1001 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21221 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
Related Parts
3120-00-367-1793INTERCHANGEABLE
BEARING,SLEEVE
21221
6685-00-453-7109INTERCHANGEABLE
THERMOCOUPLE,IMMERSION
5315-00-758-7310INTERCHANGEABLE
PIN,SHOULDER,HEADLESS
21221
3040-01-033-7776INTERCHANGEABLE
SHAFT,DRIVE,FLEXIBLE
21221
5342-01-144-3429INTERCHANGEABLE
CLAMP ASSY,SWING
531368-3
4810-01-270-2353INTERCHANGEABLE
ACTUATOR,ELECTROMECHANICAL,ROTAR
21221
3450-01-412-6436INTERCHANGEABLE
THREADING MACHINE,PIPE AND BOLT
21221
4820-01-416-4578INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
21221-001
3040-01-416-5959INTERCHANGEABLE
SHAFT,SHOULDERED
21221-1002-1
5133-01-443-3080INTERCHANGEABLE
DRILL,TWIST
21221
6150-01-485-9747INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E

Frequently Asked Questions

What is NSN 3040-01-416-5961?

NSN 3040-01-416-5961 is a Shaft,shouldered, manufactured by Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-416-5961?

NSN 3040-01-416-5961 has 4 cross-referenced part numbers: 21221-1001-1 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21221 FIND 10 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21221-1001 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21221 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace).

What NSN replaces 3040-01-416-5961?

There are 11 known substitutes for 3040-01-416-5961: 3120-00-367-1793, 6685-00-453-7109, 5315-00-758-7310 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21221-1001-1?

Key specifications for 21221-1001-1: Material Document and Classification: -ASTM 582 ASSN STD SINGLE MATERIAL RESPONSE; End Item Identification: SEAWOLF CLASS SSN; Material: STEEL COMP 416. 3 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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