Model: MS9557-24

Machine Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.750 inches and 0.810 inches

Fastener Length

1.625 inches

Head Style

Double hexagon w/hole

Head Height

0.300 inches

Width Between Flats

0.312 inches

Extended Washer Diameter

0.438 inches

Extended Washer Thickness

0.060 inches

Thread Diameter

0.250 inches

Grip Length

Between 0.815 inches and 0.875 inches

Features Provided

Finished head

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

130000 pounds per square inch

Hardness Rating

248.0 brinell standard and 341.0 brinell standard

Minimum Yield Strength

85000 pounds per square inch

Surface Finish

32.0 microinches bearing surface of head

Surface Finish

32.0 microinches threads

Material

Iron alloy 660

Material Specification

Ams 5731 assn standard single material response

Thread Series Designator

Unjf

NSN

5306-00-151-5709

Part Number

MS9557-24

Description

Bolt,machine

CAGE

81343

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. the threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. for items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

Part MS9557-24 NSN 5306-00-151-5709

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

0.1000lbs

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

573

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7318152000
SITC: 69421
End Use: Iron and steel products, other
NAICS: 332722
USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment