PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

27121Cutter,milling,end

Niagara Cutter Inc · NSN 3455-01-239-3802 · FSC 3455 · No Item Name Available
Verified by PartsTable
NSN 3455-01-239-3802 — this item is cataloged by the U.S. Government under National Stock Number 3455-01-239-3802. Primary manufacturer part number: 27121.
Features
  • Cutter,milling,end — FSC 3455
  • Flute Design: HELICAL
  • Shank Diameter: 0.375 INCHES NOMINAL IN
  • Material: STEEL
  • Shank Type: WELDON
  • Cut Length: 0.750 INCHES NOMINAL IN
  • Helix Direction: RIGHT-HAND
  • Flute Quantity: 2
Applications
  • Applications requiring Steel construction
General Description

The Cutter,milling,end, cataloged under National Stock Number 3455-01-239-3802, is classified within Federal Supply Class 3455 (No Item Name Available) of the Metalworking Machinery (continued) group. The primary manufacturer of record is Niagara Cutter Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3455-01-239-3802
Primary Part Number27121
Item NameCutter,milling,end
FSC / FSG3455 / 34 — No Item Name Available
ManufacturerNiagara Cutter Inc
StatusACTIVE
Flute DesignHELICAL
Shank Diameter0.375 INCHES NOMINAL IN
MaterialSTEEL
Shank TypeWELDON
Cut Length0.750 INCHES NOMINAL IN
Helix DirectionRIGHT-HAND
Flute Quantity2
Cutting Rotation DirectionRIGHT-HAND
Features ProvidedCENTER CUTTING AND BALL END
Specification/standard Data80204-B94.19 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Design FormSINGLE END
Diameter0.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5340-00-113-092327-121 INTERCHANGEABLE
Shield,dust
Textron Aviation Inc
8030-00-148-9833 INTERCHANGEABLE
Sealing Compound
3455-00-292-330151-10406 INTERCHANGEABLE
Cutter,milling,end
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
6615-00-799-189874441003001 INTERCHANGEABLE
Mount
Elbitamerica, Inc.
5815-00-915-2873 INTERCHANGEABLE
Cable
2520-01-171-426827121 INTERCHANGEABLE
Disk,clutch,vehicular
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
6515-01-238-0355271.21 INTERCHANGEABLE
Nail,femoral
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
6110-01-494-771227121.100-1 INTERCHANGEABLE
Starter,motor
Ward Leonard Ct Llc
6110-01-494-7715IC5181C106A3XAXX INTERCHANGEABLE
Contactor,magnetic
Ward Leonard Ct Llc
6110-01-494-7717N177-901N50 INTERCHANGEABLE
Contactor,magnetic
Ward Leonard Ct Llc
Cross-Reference Index
Part NumberManufacturer
27121 Niagara Cutter Inc (USA)
B94.19 The American Society of Mechanical Engineers (USA)
B94.19 TABLE 44 The American Society of Mechanical Engineers (USA)
B94.19 TABLE 47 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
Related Parts
5340-00-113-0923INTERCHANGEABLE
SHIELD,DUST
27-121
8030-00-148-9833INTERCHANGEABLE
SEALING COMPOUND
3455-00-292-3301INTERCHANGEABLE
CUTTER,MILLING,END
51-10406
6615-00-799-1898INTERCHANGEABLE
MOUNT
74441003001
5815-00-915-2873INTERCHANGEABLE
CABLE
2520-01-171-4268INTERCHANGEABLE
DISK,CLUTCH,VEHICULAR
27121
6515-01-238-0355INTERCHANGEABLE
NAIL,FEMORAL
271.21
6110-01-494-7712INTERCHANGEABLE
STARTER,MOTOR
27121.100-1
6110-01-494-7715INTERCHANGEABLE
CONTACTOR,MAGNETIC
IC5181C106A3XAXX
6110-01-494-7717INTERCHANGEABLE
CONTACTOR,MAGNETIC
N177-901N50
6110-01-494-9380INTERCHANGEABLE
RESETTING DEVICE,POWER,ELECTRIC
194B5291G1

Frequently Asked Questions

What is NSN 3455-01-239-3802?

NSN 3455-01-239-3802 is a Cutter,milling,end, manufactured by Niagara Cutter Inc, classified under FSC 3455 (No Item Name Available). Status: active.

What are the part numbers for NSN 3455-01-239-3802?

NSN 3455-01-239-3802 has 4 cross-referenced part numbers: 27121 (Niagara Cutter Inc), B94.19 (The American Society of Mechanical Engineers), B94.19 TABLE 44 (The American Society of Mechanical Engineers), B94.19 TABLE 47 (American National Standards Institute Incorporated Dba American National Standards Institute).

What NSN replaces 3455-01-239-3802?

There are 11 known substitutes for 3455-01-239-3802: 5340-00-113-0923, 8030-00-148-9833, 3455-00-292-3301 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 27121?

Key specifications for 27121: Flute Design: HELICAL; Shank Diameter: 0.375 INCHES NOMINAL IN; Material: STEEL; Shank Type: WELDON. 13 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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