PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ST-285Reamer,machine

Cummins Inc. · NSN 3455-00-630-5600 · FSC 3455 · No Item Name Available
Verified by PartsTable
NSN 3455-00-630-5600 — this item is cataloged by the U.S. Government under National Stock Number 3455-00-630-5600. Primary manufacturer part number: ST-285.
Features
  • Reamer,machine — FSC 3455
  • Flute Design: SPIRAL
  • Reamer Type: STEP
  • Material: CARBIDE CUTTING EDGE TIP
  • Material: STEEL LOCATION NOT OTHERWISE SPECIFIED
  • Guide: NOT INCLUDED
  • Flute Length: 2.250 INCHES NOMINAL IN
  • Helix Direction: LEFT-HAND
Applications
  • Applications requiring Carbide Cutting Edge Tip construction
General Description

The Reamer,machine, cataloged under National Stock Number 3455-00-630-5600, is classified within Federal Supply Class 3455 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Cummins Inc.. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3455-00-630-5600
Primary Part NumberST-285
Item NameReamer,machine
FSC / FSG3455 / 34 — No Item Name Available
ManufacturerCummins Inc.
StatusACTIVE
Flute DesignSPIRAL
Reamer TypeSTEP
MaterialCARBIDE CUTTING EDGE TIP
MaterialSTEEL LOCATION NOT OTHERWISE SPECIFIED
GuideNOT INCLUDED
Flute Length2.250 INCHES NOMINAL IN
Helix DirectionLEFT-HAND
Shank TypeMORSE TAPER
Flute Quantity6
Flute Cut DirectionRIGHT-HAND
Flute TypeINSERTED
Shank Taper Number2
Diameter0.402 INCHES MINIMUM AND 0.405 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-00-155-6448217WDN INTERCHANGEABLE
Bearing,ball,annular
Timken Co Div the Timken Company
5950-01-035-9581247AS-C0812-002 INTERCHANGEABLE
Transformer,audio Frequency
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
ST-285 PRIMARY Cummins Inc. (USA)
Related Parts
3110-00-155-6448INTERCHANGEABLE
BEARING,BALL,ANNULAR
217WDN
5950-01-035-9581INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
247AS-C0812-002

Frequently Asked Questions

What is NSN 3455-00-630-5600?

NSN 3455-00-630-5600 is a Reamer,machine, manufactured by Cummins Inc., classified under FSC 3455 (No Item Name Available). Status: active.

What are the part numbers for NSN 3455-00-630-5600?

NSN 3455-00-630-5600 has 1 cross-referenced part number: ST-285 (Cummins Inc.).

What NSN replaces 3455-00-630-5600?

There are 2 known substitutes for 3455-00-630-5600: 3110-00-155-6448, 5950-01-035-9581. Verify interchangeability with system specifications before substitution.

What are the specifications of ST-285?

Key specifications for ST-285: Flute Design: SPIRAL; Reamer Type: STEP; Material: CARBIDE CUTTING EDGE TIP; Material: STEEL LOCATION NOT OTHERWISE SPECIFIED. 14 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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