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5306-01-178-3684

Machine Bolt

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Official Item Classification

Name
Machine Bolt
(NSN) National Stock Number
5306-01-178-3684
(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
05/04/1984 (42 years ago)

right-hand thread direction, double hexagon w/hole head style, 3a thread class, 0.651 inches minimum and 0.671 inches maximum thread length, 0.750 inches nominal fastener length

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.651 inches minimum and 0.671 inches maximum

Fastener Length

0.750 inches nominal

Head Style

double hexagon w/hole

Head Height

0.260 inches nominal

Width Between Flats

0.243 inches minimum and 0.251 inches maximum

Extended Washer Diameter

0.375 inches nominal

Extended Washer Thickness

0.060 inches minimum and 0.070 inches maximum

Hole Diameter

0.047 inches nominal

Nominal Thread Diameter

0.250 inches

Grip Length

0.079 inches minimum and 0.099 inches maximum

Hole Quantity

4

Hole Type

drilled

Features Provided

finished head

Thread Quantity Per Inch

28

Minimum Tensile Strength

130000 pounds per square inch

Hardness Rating

24.0 rockwell c minimum and 35.0 rockwell c maximum overall

Minimum Yield Strength

85000 pounds per square inch

Hole Configuration Style

double hexagon longitudinal hole

Surface Finish

32.0 microinches bearing surface of head

Surface Finish

32.0 microinches grip

Surface Finish

32.0 microinches threads

Material

iron alloy 660 overall

Material Document And Classification

ams5731 assn std single material response overall

Thread Series Designator

unjf

Regulatory Compliance

Precious Metals Indicator
A

Item does not contain precious metal.

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
STD3061-10 Machine Bolt

Frequently Asked Questions

What is the FSCG of the NSN 5306-01-178-3684?
The FSCG of the NSN 5306-01-178-3684 is 5306
Does the NSN 5306-01-178-3684 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5306-01-178-3684 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 5306-01-178-3684 contain precious materials?
Item does not contain precious metal.
Does NSN 5306-01-178-3684 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 5306-01-178-3684 was assigned to the Federal Catalog?
It was assigned 42 years ago, on Fri, May 4, 1984