PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50-10081 4543-21/64Reamer,machine

Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039 · NSN 3455-01-012-1005 · FSC 3455 · No Item Name Available
Verified by PartsTable
NSN 3455-01-012-1005 — this item is cataloged by the U.S. Government under National Stock Number 3455-01-012-1005. Primary manufacturer part number: 50-10081 4543-21/64.
Features
  • Reamer,machine — FSC 3455
  • Shank Diameter: 0.2782 INCHES MINIMUM AND 0.2792 INCHES MAXIMUM IN
  • Flute Length: 1.500 INCHES NOMINAL IN
  • Flute Cut Direction: RIGHT-HAND
  • Diameter: 0.328 INCHES NOMINAL IN
  • Material: STEEL CUTTING EDGE TIP
  • Material: STEEL LOCATION NOT OTHERWISE SPECIFIED
  • Guide: NOT INCLUDED
Applications
  • Applications requiring Steel Cutting Edge Tip construction
General Description

The Reamer,machine, cataloged under National Stock Number 3455-01-012-1005, is classified within Federal Supply Class 3455 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3455-01-012-1005
Primary Part Number50-10081 4543-21/64
Item NameReamer,machine
FSC / FSG3455 / 34 — No Item Name Available
ManufacturerUnion Butterfield Corp P O Box 9000 Crystal Lake Il 60039
StatusACTIVE
Shank Diameter0.2782 INCHES MINIMUM AND 0.2792 INCHES MAXIMUM IN
Flute Length1.500 INCHES NOMINAL IN
Flute Cut DirectionRIGHT-HAND
Diameter0.328 INCHES NOMINAL IN
MaterialSTEEL CUTTING EDGE TIP
MaterialSTEEL LOCATION NOT OTHERWISE SPECIFIED
GuideNOT INCLUDED
Nondefinitive Spec/std Data2 CLASS AND A GRADE AND B STYLE AND X TYPE
Helix DirectionLEFT-HAND
Shank TypeSTRAIGHT
Flute Quantity4
Reamer TypeFLUTED CHUCKING
Flute TypeINTEGRAL
Flute DesignHELICAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6210-00-186-907651-0206-0117-301 INTERCHANGEABLE
Light,indicator
Dialight Corporation
4820-00-230-1696 INTERCHANGEABLE
Valve,regulating,fluid Pressure
4730-00-235-4066 INTERCHANGEABLE
Elbow,tube
2825-00-390-4050 INTERCHANGEABLE
Nozzle Assembly
4710-00-423-062260721 INTERCHANGEABLE
Pipe
Jenny Products, Inc
6685-00-444-6500BD220 INTERCHANGEABLE
Thermometer,self-Indicating,bime
Sigma Products & Mfg
5940-00-847-480731638 INTERCHANGEABLE
Terminal,lug
Te Connectivity Corporation
5950-00-910-4933 INTERCHANGEABLE
Transformer,audio Frequency
5950-00-973-3822672-0124-000 INTERCHANGEABLE
Transformer,power
Alcatel-Lucent Holdings Inc.
4820-01-185-436587584K INTERCHANGEABLE
Valve,regulating,fluid Pressure
Griswold Industries Dba Cla-Val Co
Cross-Reference Index
Part NumberManufacturer
60721 Jcorps Dba Lashundra Craig (USA)
50-10081 Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039 (USA)
31638 Lear Siegler Inc National Twist Drill and Tool Div (USA)
ANSI-B94.2 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
50-10081 4543-21/64 PRIMARY Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039 (USA)
ASME B94.2 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
4543-21/64 Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039 (USA)
535L.3281 Lavallee & Ide Inc (USA)
50-10018 PRIMARY Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039 (USA)
GGG-R-180 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
6210-00-186-9076INTERCHANGEABLE
LIGHT,INDICATOR
51-0206-0117-301
4820-00-230-1696INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
4730-00-235-4066INTERCHANGEABLE
ELBOW,TUBE
2825-00-390-4050INTERCHANGEABLE
NOZZLE ASSEMBLY
4710-00-423-0622INTERCHANGEABLE
PIPE
60721
6685-00-444-6500INTERCHANGEABLE
THERMOMETER,SELF-INDICATING,BIME
BD220
5940-00-847-4807INTERCHANGEABLE
TERMINAL,LUG
31638
5950-00-910-4933INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5950-00-973-3822INTERCHANGEABLE
TRANSFORMER,POWER
672-0124-000
4820-01-185-4365INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
87584K
4820-01-216-1126INTERCHANGEABLE
CAP,VALVE
C2029B
6685-01-222-9708INTERCHANGEABLE
THERMOMETER,SELF-INDICATING,BIME
6072-1

Frequently Asked Questions

What is NSN 3455-01-012-1005?

NSN 3455-01-012-1005 is a Reamer,machine, manufactured by Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039, classified under FSC 3455 (No Item Name Available). Status: active.

What are the part numbers for NSN 3455-01-012-1005?

NSN 3455-01-012-1005 has 10 cross-referenced part numbers: 60721 (Jcorps Dba Lashundra Craig), 50-10081 (Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039), 31638 (Lear Siegler Inc National Twist Drill and Tool Div), ANSI-B94.2 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 50-10081 4543-21/64 (Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039) and 5 more.

What NSN replaces 3455-01-012-1005?

There are 12 known substitutes for 3455-01-012-1005: 6210-00-186-9076, 4820-00-230-1696, 4730-00-235-4066 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50-10081 4543-21/64?

Key specifications for 50-10081 4543-21/64: Shank Diameter: 0.2782 INCHES MINIMUM AND 0.2792 INCHES MAXIMUM IN; Flute Length: 1.500 INCHES NOMINAL IN; Flute Cut Direction: RIGHT-HAND; Overall Length: 6.000 INCHES NOMINAL IN. 16 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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