PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ATI420D410Cutter,countersink

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc · NSN 5133-01-397-3020 · FSC 5133 · No Item Name Available
Verified by PartsTable
NSN 5133-01-397-3020 — this item is cataloged by the U.S. Government under National Stock Number 5133-01-397-3020. Primary manufacturer part number: ATI420D410.
Features
  • Cutter,countersink — FSC 5133
  • Thread Quantity: 28 PER INCH
  • Cutting End Style: STRAIGHT FLUTE BLUNT END
  • Shank Style: EXTERNALLY THREADED
  • Included Angle: 100.0 DEGREES NOMINAL
  • Pilot Diameter: 0.193 INCHES NOMINAL IN
  • Body Diameter: 0.438 INCHES NOMINAL IN
  • Nominal Thread Diameter: 0.250 INCHES IN
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Cutter,countersink, cataloged under National Stock Number 5133-01-397-3020, is classified within Federal Supply Class 5133 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5133-01-397-3020
Primary Part NumberATI420D410
Item NameCutter,countersink
FSC / FSG5133 / 51 — No Item Name Available
ManufacturerIdsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
StatusACTIVE
Thread Quantity28 PER INCH
Cutting End StyleSTRAIGHT FLUTE BLUNT END
Shank StyleEXTERNALLY THREADED
Included Angle100.0 DEGREES NOMINAL
Pilot Diameter0.193 INCHES NOMINAL IN
Body Diameter0.438 INCHES NOMINAL IN
Nominal Thread Diameter0.250 INCHES IN
Features ProvidedINTEGRAL PILOT
Thread Series DesignatorUNF
Flute Quantity3
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5133-00-062-5290 INTERCHANGEABLE
Countersink
5133-00-177-7332 INTERCHANGEABLE
Cutter,countersink
5133-01-397-3219 INTERCHANGEABLE
Cutter,countersink
Cross-Reference Index
Part NumberManufacturer
ATI420D410 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
A-A-58076A Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
A-A-58076A TY2STA General Services Administration Federal Supply Service (USA)
ACS3D410N Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
AT420D-4-10 Snap-on Incorporated Dba Snap-on Tools Div Snap-on Industrial, Special Products Division (USA)
Related Parts
5133-00-062-5290INTERCHANGEABLE
COUNTERSINK
5133-00-177-7332INTERCHANGEABLE
CUTTER,COUNTERSINK
5133-01-397-3219INTERCHANGEABLE
CUTTER,COUNTERSINK

Frequently Asked Questions

What is NSN 5133-01-397-3020?

NSN 5133-01-397-3020 is a Cutter,countersink, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 5133 (No Item Name Available). Status: active.

What are the part numbers for NSN 5133-01-397-3020?

NSN 5133-01-397-3020 has 5 cross-referenced part numbers: ATI420D410 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), A-A-58076A (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), A-A-58076A TY2STA (General Services Administration Federal Supply Service), ACS3D410N (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), AT420D-4-10 (Snap-on Incorporated Dba Snap-on Tools Div Snap-on Industrial, Special Products Division).

What NSN replaces 5133-01-397-3020?

There are 3 known substitutes for 5133-01-397-3020: 5133-00-062-5290, 5133-00-177-7332, 5133-01-397-3219. Verify interchangeability with system specifications before substitution.

What are the specifications of ATI420D410?

Key specifications for ATI420D410: Thread Quantity: 28 PER INCH; Cutting End Style: STRAIGHT FLUTE BLUNT END; Shank Style: EXTERNALLY THREADED; Included Angle: 100.0 DEGREES NOMINAL. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com