Model: MS21288-04

Machine Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.313 inches and 0.375 inches

Fastener Length

0.375 inches

Head Style

Double hexagon w/hole

Head Height

0.260 inches

Width Between Flats

Between 0.243 inches and 0.251 inches

Extended Washer Diameter

0.375 inches

Extended Washer Thickness

Between 0.040 inches and 0.050 inches

Hole Diameter

0.047 inches

Thread Diameter

0.190 inches

Hole Quantity

Hole Type

Drilled

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

Hole Configuration Style

Double hexagon flats

Surface Finish

32.0 microinches threads

Surface Finish

63.0 microinches bearing surface of head

Material

Iron alloy 660

Material Specification

Ams 5732 assn standard single material response

Thread Series Designator

Unjf

NSN

5306-00-454-1227

Part Number

MS21288-04

Description

Bolt,machine

CAGE

96906

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 MS21288-04 NSN 5306-00-454-1227

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