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5306-00-596-7420

Find complete technical information, availability, and procurement data for: 5306-00-596-7420

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5306-00-596-7420
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5306 Bolts
National Stock Number
5306-00-596-7420
Item Name Code
27851
Assigment Date
01/11/1975 (51 years ago)

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

undercut hexagon head style, right-hand thread direction, 0.311 inches minimum and 0.378 inches maximum thread length, 1.228 inches minimum and 1.248 inches maximum fastener length, 3a thread class

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class
3a
Thread Direction
right-hand
Thread Length
0.311 inches minimum and 0.378 inches maximum
Fastener Length
1.228 inches minimum and 1.248 inches maximum
Head Style
undercut hexagon
Head Height
0.157 inches minimum and 0.172 inches maximum
Width Between Flats
0.492 inches minimum and 0.502 inches maximum
Grip Diameter
0.3108 inches minimum and 0.3117 inches maximum
Nominal Thread Diameter
0.312 inches
Grip Length
0.750 inches minimum and 0.766 inches maximum
Thread Quantity Per Inch
24
Minimum Tensile Strength
95000 pounds per square inch
Hardness Rating
36.0 rockwell c minimum and 41.0 rockwell c maximum overall
Surface Finish
63.0 microinches bearing surface of head
Surface Finish
63.0 microinches grip
Special Features
retaining element in shank
Material
steel comp 6120h or steel comp 4140 or steel comp 8740 or steel comp 8735 or steel comp 304l overall
Material Document And Classification
mil-s-5000 mil spec 1st material response or mil-s-5626 mil spec 2nd material response or mil-s-6049 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-8503 mil spec 5th material response overall
Surface Treatment
cadmium and chromate overall
Surface Treatment Document And Classification
qq-p-416 ty 2 cl 3 fed spec all treatment responses overall
Thread Series Designator
unf

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
106467-5-12 Close Tolerance Bolt
AS194-5-12 Close Tolerance Bolt
CA4510-5-12 Close Tolerance Bolt
MS27576-5-12 Close Tolerance Bolt

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5306-00-596-7420?
The FSCG of the NSN 5306-00-596-7420 is 5306
Does the NSN 5306-00-596-7420 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5306-00-596-7420 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 5306-00-596-7420 contain precious materials?
Precious metal content is unknown
Does NSN 5306-00-596-7420 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 5306-00-596-7420 was assigned to the Federal Catalog?
It was assigned 51 years ago, on Sat, Jan 11, 1975

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