PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21221Threading Machine,pipe and Bolt

Curtis-Toledo, Inc. · NSN 3450-01-412-6436 · FSC 3450 · No Item Name Available
Verified by PartsTable
NSN 3450-01-412-6436 — this item is cataloged by the U.S. Government under National Stock Number 3450-01-412-6436. Primary manufacturer part number: 21221.
Features
  • Threading Machine,pipe and Bolt — FSC 3450
  • Current Type: AC OR DC
  • Mounting Type for Which Designed: FLOOR
  • Minimum Pipe Size Accommodated: 0.125 INCHES IN
  • Cutting Device Type: WHEEL
  • Voltage in Volts: 230.0 AND 460.0
  • Phase: THREE
  • Spindle Type: SINGLE
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Fluid conveyance
  • Hydraulic system plumbing
General Description

The Threading Machine,pipe and Bolt, cataloged under National Stock Number 3450-01-412-6436, is classified within Federal Supply Class 3450 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Curtis-Toledo, Inc.. Government technical data includes 10 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3450-01-412-6436
Primary Part Number21221
Item NameThreading Machine,pipe and Bolt
FSC / FSG3450 / 34 — No Item Name Available
ManufacturerCurtis-Toledo, Inc.
StatusACTIVE
Current TypeAC OR DC
Mounting Type for Which DesignedFLOOR
Minimum Pipe Size Accommodated0.125 INCHES IN
Cutting Device TypeWHEEL
Voltage in Volts230.0 AND 460.0
PhaseTHREE
Spindle TypeSINGLE
Minimum Bolt Diameter Accommodated0.250 INCHES IN
Maximum Pipe Size Accommodated2.000 INCHES IN
Maximum Bolt Diameter Accommodated0.875 INCHES IN
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
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
3040-01-416-596121221-1001-1 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 PRIMARY Curtis-Toledo, Inc. (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
4820-01-416-4578INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
21221-001
3040-01-416-5959INTERCHANGEABLE
SHAFT,SHOULDERED
21221-1002-1
3040-01-416-5961INTERCHANGEABLE
SHAFT,SHOULDERED
21221-1001-1
5133-01-443-3080INTERCHANGEABLE
DRILL,TWIST
21221
6150-01-485-9747INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E

Frequently Asked Questions

What is NSN 3450-01-412-6436?

NSN 3450-01-412-6436 is a Threading Machine,pipe and Bolt, manufactured by Curtis-Toledo, Inc., classified under FSC 3450 (No Item Name Available). Status: active.

What are the part numbers for NSN 3450-01-412-6436?

NSN 3450-01-412-6436 has 1 cross-referenced part number: 21221 (Curtis-Toledo, Inc.).

What NSN replaces 3450-01-412-6436?

There are 11 known substitutes for 3450-01-412-6436: 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?

Key specifications for 21221: Current Type: AC OR DC; Mounting Type for Which Designed: FLOOR; Minimum Pipe Size Accommodated: 0.125 INCHES IN; Cutting Device Type: WHEEL. 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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