PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AR-6/K21Cutter Bit,tool Holder

American Carbide Tool Co · NSN 3455-00-404-5838 · FSC 3455 · No Item Name Available
Verified by PartsTable
NSN 3455-00-404-5838 — this item is cataloged by the U.S. Government under National Stock Number 3455-00-404-5838. Primary manufacturer part number: AR-6/K21.
Features
  • Cutter Bit,tool Holder — FSC 3455
  • Shape: RECTANGULAR
  • Nondefinitive Spec/std Data: AR STYLE AND 6 SIZE AND -5 CLASS
  • Material: CARBIDE
  • Overall Thickness: 0.375 INCHES NOMINAL IN
  • Material Location: TIP
  • Unable to Decode: UNABLE TO DECODE
  • Edge Type: RIGHT HAND TURNING
Applications
  • Applications requiring Carbide construction
General Description

The Cutter Bit,tool Holder, cataloged under National Stock Number 3455-00-404-5838, is classified within Federal Supply Class 3455 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is American Carbide Tool Co. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 9 manufacturers, 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
NSN3455-00-404-5838
Primary Part NumberAR-6/K21
Item NameCutter Bit,tool Holder
FSC / FSG3455 / 34 — No Item Name Available
ManufacturerAmerican Carbide Tool Co
StatusACTIVE
ShapeRECTANGULAR
Nondefinitive Spec/std DataAR STYLE AND 6 SIZE AND -5 CLASS
MaterialCARBIDE
Overall Thickness0.375 INCHES NOMINAL IN
Material LocationTIP
Unable to DecodeUNABLE TO DECODE
Edge TypeRIGHT HAND TURNING
Material Type for Which DesignedFERROUS METAL AND NONFERROUS METAL
Cutting Edge FinishGROUND TO SHAPE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2530-00-401-378287623 INTERCHANGEABLE
Spindle,wheel,driving-Nondriving
Mitsubishi Caterpillar Forklift America, Inc
5945-00-949-7379C503000327 INTERCHANGEABLE
Relay,electromagnetic
Kearfott Corporation Div Guidance and Navigation Division
3455-00-996-9661AR-6 370 INTERCHANGEABLE
Cutter Bit,tool Holder
Seco Tools, Llc Dba Seco
4820-01-296-18058762 PIECE 3 INTERCHANGEABLE
Disk,valve
William E Williams Valve Corp
Cross-Reference Index
Part NumberManufacturer
383-0035 Enco Mfg Co (USA)
4110/AR-6/370 Morse Cutting Tools Div of Morse Cutting Tool Corp (USA)
AR-6/434 Hertel Cutting Technologies Inc (USA)
AR6-78B Armstrong Bros Tool Co (USA)
ANSI B212.1 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
87-623 Apex Tool Group, Llc Dba Nicholson (USA)
87-623 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
A-A-51143 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AR6-370 Armstrong Bros Tool Co (USA)
87-623 Armstrong Bros Tool Co (USA)
EDP 70115 Morse Cutting Tools Div of Morse Cutting Tool Corp (USA)
AR-6/K21 PRIMARY American Carbide Tool Co (USA)
Related Parts
2530-00-401-3782INTERCHANGEABLE
SPINDLE,WHEEL,DRIVING-NONDRIVING
87623
5945-00-949-7379INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
C503000327
3455-00-996-9661INTERCHANGEABLE
CUTTER BIT,TOOL HOLDER
AR-6 370
4820-01-296-1805INTERCHANGEABLE
DISK,VALVE
8762 PIECE 3

Frequently Asked Questions

What is NSN 3455-00-404-5838?

NSN 3455-00-404-5838 is a Cutter Bit,tool Holder, manufactured by American Carbide Tool Co, classified under FSC 3455 (No Item Name Available). Status: active.

What are the part numbers for NSN 3455-00-404-5838?

NSN 3455-00-404-5838 has 12 cross-referenced part numbers: 383-0035 (Enco Mfg Co), 4110/AR-6/370 (Morse Cutting Tools Div of Morse Cutting Tool Corp), AR-6/434 (Hertel Cutting Technologies Inc), AR6-78B (Armstrong Bros Tool Co), ANSI B212.1 (American National Standards Institute Incorporated Dba American National Standards Institute) and 7 more.

What NSN replaces 3455-00-404-5838?

There are 4 known substitutes for 3455-00-404-5838: 2530-00-401-3782, 5945-00-949-7379, 3455-00-996-9661 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AR-6/K21?

Key specifications for AR-6/K21: Shape: RECTANGULAR; Nondefinitive Spec/std Data: AR STYLE AND 6 SIZE AND -5 CLASS; Material: CARBIDE; Overall Thickness: 0.375 INCHES NOMINAL IN. 11 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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