Model: 20-057-6-31

Machine Bolt

Special Features:

Material is alloy steeel per mil-b-7838

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.578 inches

Fastener Length

2.516 inches

Head Style

Hexagon

Head Height

0.188 inches

Width Between Flats

Between 0.553 inches and 0.564 inches

End Application

Bell helicopter

Thread Diameter

0.375 inches

Grip Length

1.938 inches

Thready Qty Per Inch (tpi)

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416 federal specification all treatment responses

Thread Series Designator

Unjf

NSN

5306-01-566-3733

Part Number

20-057-6-31

Description

Bolt,machine

CAGE

97499

Part 20-057-6-31 NSN 5306-01-566-3733

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

01847

FIIG:

A003B0

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:

573

TCC:

SHC:

ACC:

Equipment for Aircraft

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