PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

644Reamer,hand

Cleveland Twist Drill Co Div of Greenfield Industries Inc · NSN 5110-00-186-4192 · FSC 5110 · No Item Name Available
Verified by PartsTable
NSN 5110-00-186-4192 — this item is cataloged by the U.S. Government under National Stock Number 5110-00-186-4192. Primary manufacturer part number: 644.
Features
  • Reamer,hand — FSC 5110
  • Specification/standard Data: 05047-ASME B94.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Taper Socket Size for Which Designed: 3 MORSE
  • Specification/standard Data: 05047-ASME B94.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Shank Type: STRAIGHT ROUND W/SQUARE END
  • Flute Design: STRAIGHT
  • Material: STEEL
  • Reamer Type: TAPER SOCKET FINISHING
Applications
  • Applications requiring Steel construction
General Description

The Reamer,hand, cataloged under National Stock Number 5110-00-186-4192, is classified within Federal Supply Class 5110 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Cleveland Twist Drill Co Div of Greenfield Industries Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 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
NSN5110-00-186-4192
Primary Part Number644
Item NameReamer,hand
FSC / FSG5110 / 51 — No Item Name Available
ManufacturerCleveland Twist Drill Co Div of Greenfield Industries Inc
StatusACTIVE
Specification/standard Data05047-ASME B94.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Taper Socket Size for Which Designed3 MORSE
Specification/standard Data05047-ASME B94.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Shank TypeSTRAIGHT ROUND W/SQUARE END
Flute DesignSTRAIGHT
MaterialSTEEL
Reamer TypeTAPER SOCKET FINISHING
Flute Length4.250 INCHES NOMINAL IN
Taper Socket Size for Which Designed3 MORSE
Diameter0.875 INCHES NOMINAL IN
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-063-8820A21494 INTERCHANGEABLE
Seat,valve
Barksdale, Inc
5915-00-140-923021494 INTERCHANGEABLE
Filter,electrical
Raytheon Company Dba Raytheon Co
3110-00-156-8161 INTERCHANGEABLE
Bearing,ball,annular
5110-00-186-4190 INTERCHANGEABLE
Reamer,hand
5110-00-186-4191 INTERCHANGEABLE
Reamer,hand
5110-00-186-4193 INTERCHANGEABLE
Reamer,hand
5110-00-186-4194 INTERCHANGEABLE
Reamer,hand
5110-00-186-4195 INTERCHANGEABLE
Reamer,hand
5110-00-189-337821491 INTERCHANGEABLE
Reamer,hand
Morse Cutting Tools
6620-00-408-547821494 INTERCHANGEABLE
Gage,pressure,dial Indicating
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
Cross-Reference Index
Part NumberManufacturer
644 Cleveland Twist Drill Co Div of Greenfield Industries Inc (USA)
21494 Morse Cutting Tools (USA)
02057032 Msc Industrial Direct Co., Inc. (USA)
24949 Cleveland Twist Drill Co Div of Greenfield Industries Inc (USA)
GGG-R-180 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
B94.2 The American Society of Mechanical Engineers (USA)
C24949 Kennametal Inc. Div Kennametal Industrial Products Group (USA)
GGG-R-180 TY5CL1STAGRA General Services Administration Federal Supply Service (USA)
Related Parts
4820-00-063-8820INTERCHANGEABLE
SEAT,VALVE
A21494
5915-00-140-9230INTERCHANGEABLE
FILTER,ELECTRICAL
21494
3110-00-156-8161INTERCHANGEABLE
BEARING,BALL,ANNULAR
5110-00-186-4190INTERCHANGEABLE
REAMER,HAND
5110-00-186-4191INTERCHANGEABLE
REAMER,HAND
5110-00-186-4193INTERCHANGEABLE
REAMER,HAND
5110-00-186-4194INTERCHANGEABLE
REAMER,HAND
5110-00-186-4195INTERCHANGEABLE
REAMER,HAND
5110-00-189-3378INTERCHANGEABLE
REAMER,HAND
21491
6620-00-408-5478INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
21494
6150-00-519-2944INTERCHANGEABLE
END BELL,ELECTRICAL ROTATING EQU
21494
2990-00-653-5760INTERCHANGEABLE
SUPERCHARGER,ENGINE,NON-AIRCRAFT
12072

Frequently Asked Questions

What is NSN 5110-00-186-4192?

NSN 5110-00-186-4192 is a Reamer,hand, manufactured by Cleveland Twist Drill Co Div of Greenfield Industries Inc, classified under FSC 5110 (No Item Name Available). Status: active.

What are the part numbers for NSN 5110-00-186-4192?

NSN 5110-00-186-4192 has 8 cross-referenced part numbers: 644 (Cleveland Twist Drill Co Div of Greenfield Industries Inc), 21494 (Morse Cutting Tools), 02057032 (Msc Industrial Direct Co., Inc.), 24949 (Cleveland Twist Drill Co Div of Greenfield Industries Inc), GGG-R-180 (Federal Specifications Promulgated by General Services Administration Washington DC) and 3 more.

What NSN replaces 5110-00-186-4192?

There are 12 known substitutes for 5110-00-186-4192: 4820-00-063-8820, 5915-00-140-9230, 3110-00-156-8161 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 644?

Key specifications for 644: Specification/standard Data: 05047-ASME B94.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Taper Socket Size for Which Designed: 3 MORSE; Specification/standard Data: 05047-ASME B94.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Shank Type: STRAIGHT ROUND W/SQUARE END. 12 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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