Model: MIL-P-21143

Headless Straight Pin

Special Features:

Hardness of 75-83hrb or equivalent for type 303 steel.

Properties:

First End Style

Chamfered

Second End Style

Radius

Pinlength

Between 2.090 inches and 3.010 inches

Pindiameter

Between 0.6251 inches and 0.6253 inches

Second End Corner Radius

Between 0.078 inches and 0.208 inches

First End Taper Length

0.750 inches

Second End Relationship With First End

Not identical

Hardness Rating

36.0 rockwell c and 42.0 rockwell c

Shear Strength

45000 double pounds per square inch

First End Taper Angle

Between 4.0 degrees and 16.0 degrees

Surface Finish

16.0 microinches outside diameter

Material

Steel comp 303 or steel comp 416 or steel comp 410

Material Specification

Astm a582 assn standard single material response or astm a493 assn standard single material response

Surface Treatment

Passivate

Surface Treatment Specification

Astm a380 assn standard single treatment response

Specification Data

96906-ms16555 government standard

NSN

5315-01-389-6396

Part Number

MIL-P-21143

Description

Pin,straight,headless

CAGE

81349

A headless, cylindrically-shaped item having a straight, smooth, solid body, with or without a drilled hole(s). It has an outside diameter equal to or less than its length. Its length must not exceed twelve inches (304 mm); for items whose length exceeds twelve inches (304 mm); see rod, straight, headless. It is used for aligning or transfer of torque and/or thrust, by fitting into corresponding holes of another item. See also pin, straight, threaded.

Part MIL-P-21143 NSN 5315-01-389-6396

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

02390

FIIG:

A212A0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

095190

UFC:

49790

LTL:

70.0

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7319409000
SITC: 69932
End Use: Cell phones and other household goods, n.e.c.
NAICS: 339993
USDA: 1

Freight Class: Pins of iron or steel nesoi