NSN 5133-00-253-5461

Machine Counterbore
DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
--
NIIN:
002535461

Pricing & Availability

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Definition Definition of approved item name (AIN): "COUNTERBORE,MACHINE"

An end cutting tool having two or more cutting edges with flutes or grooves for the passage of cuttings, an integral or removable holder designed for adaption to the end of a machine spindle. The flutes or grooves are usually helical to give a positive rake at the cutting edges. It is designed to form a flat-bottomed enlargement of the mouth of a previously formed cylindrical hole. For items requiring a holder but the holder is not included, use cutter, counterbore.

5133-00-253-5461 Spec. NSN part characteristics

MRC
Name
Detail
MRC:
AAZE
Shank Diameter
0.250 inches
MRC:
AAZF
Shank Style
Straight round
MRC:
ABHP
Overall Length
2.000 inches
MRC:
AKZH
Cutting End Style
Interchangeable pilot
MRC:
AKZL
Cutting Diameter
1.0000 inches
MRC:
AKZQ
Pilot Hole Diameter
0.187 inches
MRC:
ALAR
Flute Quantity
4
MRC:
CBBL
Features Provided
Replaceable pilot
MRC:
MATT
Material
Steel

Cross Reference Parts Part numbers that meet the specification outlined on this page and set by the OEM

Part Number
Cage
RNCC
RNVC
DAC
RNAAC
Status
MSDS
SADC
Part Number:
AT488M25
Cage Code:
00784
RNCC:
3
RNVC:
2
DAC:
4
RNAAC:
75
Status:
A
MSDS:
SADC:
Part Number:
AT488-25
Cage Code:
00784
RNCC:
5
RNVC:
2
DAC:
4
RNAAC:
75
Status:
A
MSDS:
SADC:
Indicates a design/source control reference item
Inidicates part number has been superseded

Identification Item Identification Guide (IIG) and Item Name Code (INC)

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05259
FIIG:
A188A0
Concept No.:
App. Key:
F
Cond. Code:
1
Status:
A

Material & Special Handling Hazmat, Precious Metals, Criticality, Enviroment, and ESD

HMIC
PMIC
ESD
ENAC
ADPE
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
ADPE:
CRITL:
X
Hazmat (HMIC) N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Precious Metals (PMIC) A

Item does not contain precious metal.

Criticality X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

  Identification Codes

HMIC: Hazardous Material Indicator Code. Identifies a hazardous item.

PMIC: Precious Metal Indicator Code. Identifies items that have precious metals as part of their content. precious metals are those metals generally considered to be uncommon, highly valuable, and relatively superior in certain properties such as resistance to corrosion and electrical conductivity.

ESD: Electrostatic Discharge. Indicates if an item is susceptible to electrostatic discharge or electromagnetic interference damage. electrostatic discharge damage occurs when an accumulation of static electricity generated by the relative motion or separation of materials is released to another item by direct contact. electromagnetic interference damage occurs when an item comes into proximity with an electrostatic or magnetic field.

ENAC: Enviromental Attribute Code. Identifies items with environmentally preferred characteristics.

CRITL: Criticality Indicator Code. Indicates an item is technically critical by tolerance, fit, application, nuclear hardness properties, or other characteristics.