Model: MS9090-20

Machine Bolt

Special Features:

12 point head

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.875 inches

Fastener Length

0.875 inches

Head Style

Double hexagon extended washer

Head Height

0.250 inches

Width Between Flats

0.490 inches

Extended Washer Diameter

0.624 inches

Extended Washer Thickness

0.055 inches

End Application

Gas turbines, pratt and whitney, model nos. Ft4a-2, ft4a-6, and ft4a-12; used onboard 378 ft and 400 ft u. S. Coast guard vessels

Thread Diameter

0.312 inches

Thready Qty Per Inch (tpi)

Material

Steel

Thread Series Designator

Unf

NSN

5306-01-145-1320

Part Number

MS9090-20

Description

Bolt,machine

CAGE

77445

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 MS9090-20 NSN 5306-01-145-1320

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:

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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