Model: MIL-S-63540/3-2-3

Self-locking Stud

Properties:

Thread Class

2a nut thread

Thread Direction

Right-hand nut thread

Thread Length

0.152 inches nut thread and 0.188 inches nut thread

Head Diameter

0.157 inches

Head Length

Between 0.055 inches and 0.061 inches

Locking Feature

Self-clinching head

Overall Length

0.188 inches

Distance Across Flats

Between 0.172 inches and 0.202 inches

Thready Qty Per Inch (tpi)

56 nut thread

Hardness Rating

171.0 brinell standard

Thread Size

0.086 inches nut thread

Material

Steel comp 303 or steel comp 303se

Material Specification

Astm a582 assn standard all material responses

Surface Treatment

Passivate

Surface Treatment Specification

Astm a380 assn standard single treatment response

Style Designator

Self-locking

Thread Series Designator

Unc nut thread

NSN

5307-01-289-5037

Part Number

MIL-S-63540/3-2-3

Description

Stud,self-locking

CAGE

81349

Part MIL-S-63540/3-2-3 NSN 5307-01-289-5037

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

27783

FIIG:

A051A0

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:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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