Model: AT420D-4-1/4

Countersink Cutter

Properties:

Pilot Diameter
0.250 inches
Shank Style
Externally threaded
Body Diameter
0.438 inches
Thread Diameter
0.250 inches
Cutting End Style
Straight flute blunt end
Flute Quantity
3
Features Provided
Integral pilot
Thread Quantity
28 per inch
Included Angle
100.0 degrees
Thread Series Designator
Unf
NSN
5133-01-397-3087
Part Number
AT420D-4-1/4
Description
Cutter,countersink
CAGE
00784

The detachable portion of a machine countersink which includes the cutting edge, having various size cutting angles and a special shank. The special shank is designed to accommodate a special holder. The cutter may have an integral pilot or be designed for an interchangeable pilot, which may or may not be included. For items with special holder included, use countersink.

Part AT420D-4-1/4 NSN 5133-01-397-3087

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05426
FIIG:
A188A0
Concept No.:
App. Key:
N
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
186620
UFC:
91810
LTL:
RATING VARIABLE
LCL:
--
WCC:
732
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 8205100000
  • SITC: 69541
  • End Use: Photo, service industry machinery
  • NAICS: 332216
  • USDA: 1

Freight Class: Drilling, threading or tapping tools and parts thereof, base metal

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