PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

44556Cutter Bit,tool Holder

Kennametal Inc. Div Kennametal Industrial Products Group · NSN 3455-00-400-2104 · FSC 3455 · No Item Name Available
Verified by PartsTable
NSN 3455-00-400-2104 — this item is cataloged by the U.S. Government under National Stock Number 3455-00-400-2104. Primary manufacturer part number: 44556.
Features
  • Cutter Bit,tool Holder — FSC 3455
  • Shape: SQUARE
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 STYLE AND B GRADE AND M-42 CLASS
  • Material: STEEL
  • Cutting Edge Finish: UNGROUND
  • Overall Thickness: 0.750 INCHES NOMINAL IN
  • Edge Type: SQUARE NOSE
  • Material Type for Which Designed: FERROUS METAL AND NONFERROUS METAL
Applications
  • Applications requiring Steel construction
General Description

The Cutter Bit,tool Holder, cataloged under National Stock Number 3455-00-400-2104, is classified within Federal Supply Class 3455 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Kennametal Inc. Div Kennametal Industrial Products Group. Government technical data includes 8 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3455-00-400-2104
Primary Part Number44556
Item NameCutter Bit,tool Holder
FSC / FSG3455 / 34 — No Item Name Available
ManufacturerKennametal Inc. Div Kennametal Industrial Products Group
StatusCANCELLED
ShapeSQUARE
Nondefinitive Spec/std Data1 TYPE AND 1 STYLE AND B GRADE AND M-42 CLASS
MaterialSTEEL
Cutting Edge FinishUNGROUND
Overall Thickness0.750 INCHES NOMINAL IN
Edge TypeSQUARE NOSE
Material Type for Which DesignedFERROUS METAL AND NONFERROUS METAL
Unable to DecodeUNABLE TO DECODE AND UNABLE TO DECODE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5845-00-066-682644556 INTERCHANGEABLE
Housing,servo Modul
L3harris Technologies, Inc. Div Space and Airborne Systems
3455-00-455-5458 INTERCHANGEABLE
Cutter Bit,tool Holder
3455-00-455-5459 INTERCHANGEABLE
Cutter Bit,tool Holder
5331-00-623-000047-071 2-116 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5360-00-691-2070651803-000 INTERCHANGEABLE
Spring,helical,extension
Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc
6625-00-908-2015G128-106-001 INTERCHANGEABLE
Bolometer,radio Frequency
Kearfott Corporation Div Guidance and Navigation Division
5995-00-926-6316CX11493U8FT INTERCHANGEABLE
Cable Assembly,special Purpose,e
Joint Electronics Type Designation System
5995-01-656-768185534 INTERCHANGEABLE
Wiring Harness,branched
Trimble Inc Dba Trimble Navigation
5365-01-685-130844556 INTERCHANGEABLE
Spacer,sleeve
Allied Systems Company Dba Allied Systems Co
Cross-Reference Index
Part NumberManufacturer
855-3/4X3/4X5IN. Kennametal Inc. Div Kennametal Industrial Products Group (USA)
3505-0750 Kennametal Inc. Div Kennametal Industrial Products Group (USA)
855-3/4 Cleveland Twist Drill Co Div of Greenfield Industries Inc (USA)
44556 Cleveland Twist Drill Co Div of Greenfield Industries Inc (USA)
855-3/4X3/4X5IN. Cleveland Twist Drill Co Div of Greenfield Industries Inc (USA)
A-A-51130 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
3505-0750 Cleveland Twist Drill Co Div of Greenfield Industries Inc (USA)
OO-C-851 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
OO-C-851 TYIST1GRBCLM-42FNA General Services Administration Federal Supply Service (USA)
44556 PRIMARY Kennametal Inc. Div Kennametal Industrial Products Group (USA)
855-3/4 Kennametal Inc. Div Kennametal Industrial Products Group (USA)
Related Parts
5845-00-066-6826INTERCHANGEABLE
HOUSING,SERVO MODUL
44556
3455-00-455-5458INTERCHANGEABLE
CUTTER BIT,TOOL HOLDER
3455-00-455-5459INTERCHANGEABLE
CUTTER BIT,TOOL HOLDER
5331-00-623-0000INTERCHANGEABLE
O-RING
47-071 2-116
5360-00-691-2070INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
651803-000
6625-00-908-2015INTERCHANGEABLE
BOLOMETER,RADIO FREQUENCY
G128-106-001
5995-00-926-6316INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
CX11493U8FT
5995-01-656-7681INTERCHANGEABLE
WIRING HARNESS,BRANCHED
85534
5365-01-685-1308INTERCHANGEABLE
SPACER,SLEEVE
44556

Frequently Asked Questions

What is NSN 3455-00-400-2104?

NSN 3455-00-400-2104 is a Cutter Bit,tool Holder, manufactured by Kennametal Inc. Div Kennametal Industrial Products Group, classified under FSC 3455 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3455-00-400-2104?

NSN 3455-00-400-2104 has 11 cross-referenced part numbers: 855-3/4X3/4X5IN. (Kennametal Inc. Div Kennametal Industrial Products Group), 3505-0750 (Kennametal Inc. Div Kennametal Industrial Products Group), 855-3/4 (Cleveland Twist Drill Co Div of Greenfield Industries Inc), 44556 (Cleveland Twist Drill Co Div of Greenfield Industries Inc), 855-3/4X3/4X5IN. (Cleveland Twist Drill Co Div of Greenfield Industries Inc) and 6 more.

What NSN replaces 3455-00-400-2104?

There are 9 known substitutes for 3455-00-400-2104: 5845-00-066-6826, 3455-00-455-5458, 3455-00-455-5459 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 44556?

Key specifications for 44556: Overall Length: 5.000 INCHES NOMINAL IN; Shape: SQUARE; Nondefinitive Spec/std Data: 1 TYPE AND 1 STYLE AND B GRADE AND M-42 CLASS; Material: STEEL. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3455-00-400-2104 still in active supply?

NSN 3455-00-400-2104 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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