PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-A-51143Cutter Bit,tool Holder

Federal Commercial Item Description Promulgated by General Services Administration Washington DC · NSN 3455-01-050-9845 · FSC 3455 · No Item Name Available
Verified by PartsTable
NSN 3455-01-050-9845 — this item is cataloged by the U.S. Government under National Stock Number 3455-01-050-9845. Primary manufacturer part number: A-A-51143.
Features
  • Cutter Bit,tool Holder — FSC 3455
  • Shape: SQUARE
  • Nondefinitive Spec/std Data: AR STYLE AND 7 SIZE AND 5 CLASS
  • Material: CARBIDE
  • Material Location: TIP
  • Overall Thickness: 0.438 INCHES NOMINAL IN
  • Material Type for Which Designed: NONFERROUS METAL
  • Edge Type: RIGHT HAND TURNING
Applications
  • Applications requiring Carbide construction
General Description

The Cutter Bit,tool Holder, cataloged under National Stock Number 3455-01-050-9845, is classified within Federal Supply Class 3455 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3455-01-050-9845
Primary Part NumberA-A-51143
Item NameCutter Bit,tool Holder
FSC / FSG3455 / 34 — No Item Name Available
ManufacturerFederal Commercial Item Description Promulgated by General Services Administration Washington DC
StatusACTIVE
ShapeSQUARE
Nondefinitive Spec/std DataAR STYLE AND 7 SIZE AND 5 CLASS
MaterialCARBIDE
Material LocationTIP
Overall Thickness0.438 INCHES NOMINAL IN
Material Type for Which DesignedNONFERROUS METAL
Edge TypeRIGHT HAND TURNING
Unable to DecodeUNABLE TO DECODE
Cutting Edge FinishGROUND TO SHAPE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3455-00-019-4234AR 8 370 INTERCHANGEABLE
Cutter Bit,tool Holder
Seco Tools, Llc Dba Seco
3455-00-052-6477AL5 INTERCHANGEABLE
Cutter Bit,tool Holder
Seco Tools, Llc Dba Seco
4320-00-115-2459B2-2616 INTERCHANGEABLE
Bushing Shaft,pump
Hartford Compressors Inc
3455-00-554-8699AR 4 883 INTERCHANGEABLE
Cutter Bit,tool Holder
Seco Tools, Llc Dba Seco
3455-01-053-5209 INTERCHANGEABLE
Cutter Bit,tool Holder
5305-01-400-2831777-2214 INTERCHANGEABLE
Setscrew
Deutz Corporation
1650-01-518-232372214 INTERCHANGEABLE
Cylinder Assembly,actuating,line
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5120-01-661-511987-624 INTERCHANGEABLE
Wrench,pipe
Stanley Tools Div of Stanley Works
Cross-Reference Index
Part NumberManufacturer
A-A-51143 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
72214 Armstrong Bros Tool Co (USA)
AR7/370 Armstrong Bros Tool Co (USA)
72214 Apex Tool Group, Llc Dba Nicholson (USA)
87-624 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
87-624 Apex Tool Group, Llc Dba Nicholson (USA)
A-A-51143 TY A STYLE AAR CL5 SZ7 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
B212.1 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
72214 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
AR7-78B Armstrong Bros Tool Co (USA)
87-624 Armstrong Bros Tool Co (USA)
Related Parts
3455-00-019-4234INTERCHANGEABLE
CUTTER BIT,TOOL HOLDER
AR 8 370
3455-00-052-6477INTERCHANGEABLE
CUTTER BIT,TOOL HOLDER
AL5
4320-00-115-2459INTERCHANGEABLE
BUSHING SHAFT,PUMP
B2-2616
3455-00-554-8699INTERCHANGEABLE
CUTTER BIT,TOOL HOLDER
AR 4 883
3455-01-053-5209INTERCHANGEABLE
CUTTER BIT,TOOL HOLDER
5305-01-400-2831INTERCHANGEABLE
SETSCREW
777-2214
1650-01-518-2323INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
72214
5120-01-661-5119INTERCHANGEABLE
WRENCH,PIPE
87-624

Frequently Asked Questions

What is NSN 3455-01-050-9845?

NSN 3455-01-050-9845 is a Cutter Bit,tool Holder, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 3455 (No Item Name Available). Status: active.

What are the part numbers for NSN 3455-01-050-9845?

NSN 3455-01-050-9845 has 11 cross-referenced part numbers: A-A-51143 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 72214 (Armstrong Bros Tool Co), AR7/370 (Armstrong Bros Tool Co), 72214 (Apex Tool Group, Llc Dba Nicholson), 87-624 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.) and 6 more.

What NSN replaces 3455-01-050-9845?

There are 8 known substitutes for 3455-01-050-9845: 3455-00-019-4234, 3455-00-052-6477, 4320-00-115-2459 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-A-51143?

Key specifications for A-A-51143: Shape: SQUARE; Nondefinitive Spec/std Data: AR STYLE AND 7 SIZE AND 5 CLASS; Material: CARBIDE; Material Location: TIP. 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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