Model: 31W257

Plain Stud

Special Features:

Header point 0.062 in. Long by 0.156 in. Diameter on stud end

Properties:

Thread Class

3a nut thread

Thread Pitch Diameters

+0.2195/+0.2215 inches stud thread

Thread Direction

Right-hand nut thread

Thread Direction

Right-hand stud thread

Thread Length

0.500 inches nut thread

Thread Length

0.438 inches stud thread

Overall Length

1.219 inches

Thready Qty Per Inch (tpi)

20 stud thread

Thready Qty Per Inch (tpi)

28 nut thread

Hardness Rating

Between 25.0 rockwell c and 31.0 rockwell c

Thread Size

0.250 inches nut thread

Thread Size

0.250 inches stud thread

Material

Steel comp 1040

Material Specification

Qq-s-633 federal specification single material response

Surface Treatment

Cadmium and chromate

Thread Series Designator

Unf nut thread

Thread Series Designator

Uns stud thread

NSN

5307-00-842-0855

Part Number

31W257

Description

Stud,plain

CAGE

62265

Part 31W257 NSN 5307-00-842-0855

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15948

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:

50.0

WCC:

573

TCC:

SHC:

ACC:

Construction Materials

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