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5306-00-357-1918

Machine Bolt

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Official Item Classification

Name
Machine Bolt
(NSN) National Stock Number
5306-00-357-1918
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5306 Bolts
(INC) Item Name Code
01847
(FIIG) Federal Item Identification Guide
A003B0
Date
02/08/1974 (52 years ago)

3a thread class, 1.250 inches nominal fastener length, right-hand thread direction, double hexagon w/hole head style, 0.750 inches minimum and 0.810 inches maximum thread length

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.750 inches minimum and 0.810 inches maximum

Fastener Length

1.250 inches nominal

Head Style

double hexagon w/hole

Head Height

0.330 inches nominal

Width Between Flats

0.304 inches minimum and 0.313 inches maximum

Extended Washer Diameter

0.438 inches nominal

Extended Washer Thickness

0.060 inches minimum and 0.070 inches maximum

Hole Diameter

0.070 inches nominal

Nominal Thread Diameter

0.250 inches

Grip Length

0.440 inches minimum and 0.500 inches maximum

Hole Quantity

4

Hole Type

drilled

Features Provided

finished head

Thread Quantity Per Inch

28

Minimum Tensile Strength

125000 pounds per square inch

Hardness Rating

26.0 rockwell c minimum and 32.0 rockwell c maximum overall

Hole Configuration Style

double hexagon longitudinal hole

Surface Finish

32.0 microinches threads

Surface Finish

63.0 microinches bearing surface of head

Surface Finish

63.0 microinches grip

Material

steel comp 8740 overall

Material Document And Classification

ams 6322 assn std single material response overall

Surface Treatment

oxide overall

Surface Treatment Document And Classification

ams 2485 assn std single treatment response overall

Thread Series Designator

unf

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator
N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Pseudo Item Name Code

0001847

Related Hardware Products

Part Number Description
MS9170-18 Machine Bolt

Frequently Asked Questions

What is the FSCG of the NSN 5306-00-357-1918?
The FSCG of the NSN 5306-00-357-1918 is 5306
Does the NSN 5306-00-357-1918 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5306-00-357-1918 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5306-00-357-1918 contain precious materials?
Precious metal content is unknown
Does NSN 5306-00-357-1918 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5306-00-357-1918 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Fri, Feb 8, 1974