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5306-00-149-8993

Close Tolerance Bolt

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Official Item Classification

Name
Close Tolerance Bolt
(NSN) National Stock Number
5306-00-149-8993
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5306 Bolts
(INC) Item Name Code
27851
(FIIG) Federal Item Identification Guide
A003B0
Date
10/08/1971 (55 years ago)

0.335 inches minimum and 0.382 inches maximum thread length, double hexagon head style, right-hand thread direction, 0.960 inches minimum and 1.007 inches maximum fastener length, 3a thread class

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.335 inches minimum and 0.382 inches maximum

Fastener Length

0.960 inches minimum and 1.007 inches maximum

Head Style

double hexagon

Head Height

0.187 inches nominal

Width Between Flats

0.492 inches minimum and 0.502 inches maximum

Grip Diameter

0.3110 inches minimum and 0.3120 inches maximum

Nominal Thread Diameter

0.312 inches

Grip Length

0.625 inches nominal

Thread Quantity Per Inch

24

Minimum Tensile Strength

132000 pounds per square inch

Surface Finish

32.0 microinches bearing surface of head

Surface Finish

32.0 microinches grip

Material

steel overall

Material Document And Classification

h-11,sts bs000,fscm 98897 mfr ref single material response overall

Surface Treatment

nickel and cadmium and chromate overall

Surface Treatment Document And Classification

sts bs 000,lockheed-georgia co mfr ref all treatment responses overall

Thread Series Designator

unjf

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

0027851

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Frequently Asked Questions

What is the FSCG of the NSN 5306-00-149-8993?
The FSCG of the NSN 5306-00-149-8993 is 5306
Does the NSN 5306-00-149-8993 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5306-00-149-8993 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 5306-00-149-8993 contain precious materials?
Precious metal content is unknown
Does NSN 5306-00-149-8993 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 5306-00-149-8993 was assigned to the Federal Catalog?
It was assigned 55 years ago, on Fri, Oct 8, 1971